text stringlengths 1 1.11k | source dict |
|---|---|
In this case the user will not notice if SLV was not able to find a solution.
This should work better:
Code:
LBL A #000 // lower guess = 0 #001 // upper guess = 1 SLV 00 // solve for derivative = 0 RTN // quit if solution found ERR 20 // otherwise show error message "no root found"
Dieter
11-2... | {
"domain": "hpmuseum.org",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9752018398044143,
"lm_q1q2_score": 0.8062108563203466,
"lm_q2_score": 0.826711787666479,
"openwebmath_perplexity": 3862.8385835978174,
"openwebmath_score": 0.3922543227672577,
"tags": n... |
Hey everyone! I've been working on this huge packet filled with College Math II and Calculus 1 questions. I'm finished with 82 problems but now I'm stuck on the below few. If you can, please help me out because this is definitely URGENT!
-----------------
1. Given $y=2x^2-8$
Find the equation of the TANGENT line I at $... | {
"domain": "mathhelpforum.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9808759643671934,
"lm_q1q2_score": 0.8173880741780285,
"lm_q2_score": 0.8333246035907933,
"openwebmath_perplexity": 502.71868985862267,
"openwebmath_score": 0.6893875002861023,
"ta... |
ros, transform, ros-kinetic, ar-track-alvar
Originally posted by artemiialessandrini on ROS Answers with karma: 69 on 2018-12-06
Post score: 0
Found solution after checking ar_track_alvar messages available and only got this line changed:
tf::poseMsgToTF(p->markers[0].pose.pose, cam_to_target);
Originally posted b... | {
"domain": "robotics.stackexchange",
"id": 32135,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, transform, ros-kinetic, ar-track-alvar",
"url": null
} |
airflow
At Standard Temperature and Pressure (STP; 1 atm, 0 °C), a mole of ideal gas occupies 22.4 liters. Let's say you're really asking about 21 °C. That's 294 °K as apposed to 273 °K at STP. The volume will therefore be (22.4 l)(294 °K)/(273 °K) = 24.1 l. Since that's one mole, it has a mass of 29 g. Put anoth... | {
"domain": "engineering.stackexchange",
"id": 848,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "airflow",
"url": null
} |
quantum-field-theory, gauge-theory, path-integral, gauge, brst
In this case, even though I have a propagator with a different form, will my final answer of S-matrix element which should be independent of $\xi$ be the same as Gaussian integration case? Any integrable function $f$ will in principle do. But the calculati... | {
"domain": "physics.stackexchange",
"id": 42341,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-field-theory, gauge-theory, path-integral, gauge, brst",
"url": null
} |
chemical-engineering
We denote the exit concentration in the reactor at the top $C_{A1}$, and at the bottom $C_{A2}$. Applying a mole balance to both CSTR's in steady state, with equal volumes but of value $V/2$, yields
\begin{align}
\alpha v_0C_{A0} - \alpha v_0 C_{A1} &- (k C_{A1})\frac{V}{2} = 0 \\
(1 - \alpha)... | {
"domain": "engineering.stackexchange",
"id": 5159,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "chemical-engineering",
"url": null
} |
problem to extend to a larger region of space than was previously admissible, albeit with some tricky new constraints on ${F}$ (and penalties in the variational problem). This required some unusual sieve-theoretic manipulations, notably an “epsilon trick”, ultimately relying on the elementary inequality ${(a+b)^2 \geq ... | {
"domain": "wordpress.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9875683509762453,
"lm_q1q2_score": 0.8074106838393037,
"lm_q2_score": 0.8175744828610095,
"openwebmath_perplexity": 289.3477014796908,
"openwebmath_score": 0.8615475296974182,
"tag... |
probabilistic-algorithms, random-graphs
If you prefer not to use that proposition, you can transplant its proof to fit the current problem. It should not be hard to find a proof for that proposition since it is a classic result in the introductory theory of random graphs. | {
"domain": "cs.stackexchange",
"id": 13683,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "probabilistic-algorithms, random-graphs",
"url": null
} |
Let $X$ denote the number of white balls initially transferred into the urn from which you are drawing balls. Then, before you have drawn any balls, $X$ has a hypergeometric distribution: $$\Pr[X = x] = \frac{\binom{3}{x}\binom{5}{4-x}}{\binom{8}{4}}, \quad x \in \{0, 1, 2, 3\}.$$ After you draw two balls from this urn... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9808759610129464,
"lm_q1q2_score": 0.8297645973469474,
"lm_q2_score": 0.8459424334245618,
"openwebmath_perplexity": 296.63691857395315,
"openwebmath_score": 0.9020454287528992,
"ta... |
textbook-and-exercises, density-matrix, information-theory, probability
But it is always possible to find some ensemble to do this in. As you have mentioned, the spectral decomposition tells us how to do this in the ensemble of the eigenstates of $\rho$
For any density matrix the eigenvalues are always non-negative a... | {
"domain": "quantumcomputing.stackexchange",
"id": 3093,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "textbook-and-exercises, density-matrix, information-theory, probability",
... |
into 5 pieces evenly, by scanning the entire list. ) Define the range of a relation. You must know how to solve it. So, it can not be solved using Master's theorem. R= Red, W=White, B=Blue a_1 = 2, R, W a_2 = 4, RW, WR, WW, RR a_3 = 1, B a_4 = 4, B(a_1), W(a_3), R(a_3) a_5 = 12, B(a_2), W(a_4), R(a_4) a_6 = 21, B(a_3),... | {
"domain": "fnaarccuneo.it",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9850429125286726,
"lm_q1q2_score": 0.8449383995767705,
"lm_q2_score": 0.8577681122619885,
"openwebmath_perplexity": 1014.9281657158043,
"openwebmath_score": 0.5720400810241699,
"t... |
c++, console, compression
cout << "[" << HELP_FLAG_SHORT << " | " << HELP_FLAG_LONG << "]\n";
cout << indent
<< "[" << VERSION_FLAG_SHORT << " | " << VERSION_FLAG_LONG << "]\n";
cout << indent
<< "[" << ENCODE_FLAG_SHORT << " | " << ENCODE_FLAG_LONG
<< "] FILE\n";
cout << indent
... | {
"domain": "codereview.stackexchange",
"id": 23189,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c++, console, compression",
"url": null
} |
comment Today we are going to look at the importance of Cholesky Decomposition in the context of Monte Carlo SImulation and why does it actually work. independent) normally-distributed random variates into a vector of correlated (i. This type of decomposition is important in the analysis of risk factors and in the pric... | {
"domain": "atleticolugo.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9875683480491555,
"lm_q1q2_score": 0.8074106704720572,
"lm_q2_score": 0.817574471748733,
"openwebmath_perplexity": 1222.609278182848,
"openwebmath_score": 0.5887592434883118,
"tags":... |
python, game
def _handleConsoleContinueInput(self):
print "Wanna continue?"
if "y" not in raw_input():
self.is_running = False
if __name__ == "__main__":
ConsoleGameRunner().run()
Note, that there is no fancy ascii-art strings all along. They are not part of game logic. ConsoleGameRun... | {
"domain": "codereview.stackexchange",
"id": 9748,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, game",
"url": null
} |
ros, gazebo, hardware-interface, controller-manager, action-client
Title: Unable to configure custom 1DOF gripper to TIAGo robot arm
I am trying to integrate a new custom gripper to the tiago robot from pal robotics in ros indigo environment. I am using the gripper_action_controller (link text) from ros_controllers t... | {
"domain": "robotics.stackexchange",
"id": 30680,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, gazebo, hardware-interface, controller-manager, action-client",
"url": nul... |
ros, docker, ros-kinetic
ros-kinetic-sensor-msgs \
ros-kinetic-smclib \
ros-kinetic-std-msgs \
ros-kinetic-std-srvs \
ros-kinetic-tf2 \
ros-kinetic-tf2-msgs \
ros-kinetic-tf2-py \
ros-kinetic-tf2-ros \
ros-kinetic-topic-tools \
ros-kinetic-xmlrpcpp \
ros-kine... | {
"domain": "robotics.stackexchange",
"id": 30221,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, docker, ros-kinetic",
"url": null
} |
cc.complexity-theory, parameterized-complexity, treewidth, boolean-formulas, encoding
Clearly the largest bag of $T'$ has size $2(w+1)$ and thus, has treewidth $2w+1$.
$\square$
Now, interestingly, there is a clean relation between the incidence treewidth of a CNF $\phi$ and the treewidth of its circuit. Let $C_{\neg ... | {
"domain": "cstheory.stackexchange",
"id": 5536,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "cc.complexity-theory, parameterized-complexity, treewidth, boolean-formulas, encod... |
speech-recognition
Yes, this is what happens.
The cost of stretching the "o" is high, but still lower than having the emission probabilities totally wrong by matching the "o"s or the "n" that follows with other phonemes.
Basically, is there some convincing proof/intuition, that pronouncing a certain word very slowly ... | {
"domain": "dsp.stackexchange",
"id": 2063,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "speech-recognition",
"url": null
} |
On the second example above, @alx noted that @alx's method returns False. One can see that it can be written in the desired form from the following:
fn = 5 Sin[4 (t - 1)] + Cos[2 t]^2 - 1;
a * Sin[b*t + c] + d /. sinParameters[fn, t]
(*
-(1/2) - 1/2 Sqrt[101 - 20 Sin[4]] *
Sin[ 4 t - ArcSin[(1 - 10 Sin[4])/Sqrt[10... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9496693645535725,
"lm_q1q2_score": 0.8052889949631967,
"lm_q2_score": 0.8479677506936878,
"openwebmath_perplexity": 2925.453596467647,
"openwebmath_score": 0.48634108901023865,
"ta... |
c++, c++17
This should generate three files, each file with 5 values:
> find data
data/name
data/age
data/salary
data/team/id
data/team/size
Currently it does not generate indexes into these files (but this may be a later addition).
Building
I reuse code (The Traits) from ThorsSerializer (reviewed here Macro to build... | {
"domain": "codereview.stackexchange",
"id": 37907,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c++, c++17",
"url": null
} |
performance, c, embedded, natural-language-processing
char **known_edits2(char **array, int rows, int *e2_rows)
{
size_t e1_rows = 0;
int res_size = 0;
char **res = NULL, **e1 = NULL;
for (int i = 0; i < rows; i++)
{
e1 = edits1(array[i]);
e1_rows = edits1_rows(array[i]);
... | {
"domain": "codereview.stackexchange",
"id": 14061,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "performance, c, embedded, natural-language-processing",
"url": null
} |
quantum-mechanics, operators, hilbert-space, observables
I thought all quantum operators had a set of eigenvectors that spanned the whole space, am I wrong on that or am I wrong on my algebra? I believe you've just made an algebraic error. To find the normalised eigenstates of $L_x$ in the (eigenstates of) $L_z$ basis... | {
"domain": "physics.stackexchange",
"id": 11163,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-mechanics, operators, hilbert-space, observables",
"url": null
} |
java, parsing, regex, http
Title: HTTP Authorization header parser I'm writing a parser for HTTP Authorization header (see RFC2616#14.8 and RFC2617#1.2). Note that I explicitly don't care about the base64-encoded syntax used by HTTP Basic authentication. I'm only interested in the auth-param syntax used by Digest auth... | {
"domain": "codereview.stackexchange",
"id": 6036,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, parsing, regex, http",
"url": null
} |
php, api, curl, oauth, instagram
function refresh_access_token($access_token){
$url = 'https://graph.instagram.com/refresh_access_token/?';
$data = array(
'access_token' => $access_token,
'grant_type' => 'ig_refresh_token'
);
$string = http_build_query($data)... | {
"domain": "codereview.stackexchange",
"id": 41011,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "php, api, curl, oauth, instagram",
"url": null
} |
visible-light, photons
Title: Why does light not flood the room? When I flip on a light and it "floods the room" why is it that photons do not actually flood the room, making it brighter and brighter, given the lighting mechanism continues to have an electric current running through it?
My initial thought was that it ... | {
"domain": "physics.stackexchange",
"id": 74844,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "visible-light, photons",
"url": null
} |
Problem with u-Substitution
1. Jun 10, 2009
andrewjohnsc
1. The problem statement, all variables and given/known data
$$\int$$tan x sec$$^{}4$$ x dx
2. Relevant equations
U-Sub
3. The attempt at a solution
I did this two different ways and go two different answers.
The correct way is
$$\int$$sec^3(x)*sec(x)*tan(x... | {
"domain": "physicsforums.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.956634196290671,
"lm_q1q2_score": 0.8223837427690249,
"lm_q2_score": 0.8596637523076225,
"openwebmath_perplexity": 4830.25930165593,
"openwebmath_score": 0.587220311164856,
"tags":... |
##### Definition SSCV Span of a Set of Column Vectors
Given a set of vectors $S=\{\vectorlist{u}{p}\}$, their span, $\spn{S}$, is the set of all possible linear combinations of $\vectorlist{u}{p}$. Symbolically, \begin{align*} \spn{S}&=\setparts{\lincombo{\alpha}{u}{p}}{\alpha_i\in\complex{\null},\,1\leq i\leq p}\\ &=... | {
"domain": "uri.edu",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9854964181787613,
"lm_q1q2_score": 0.8034087004513365,
"lm_q2_score": 0.8152324915965392,
"openwebmath_perplexity": 341.3346662878509,
"openwebmath_score": 0.8880355358123779,
"tags": null,
... |
graphs, graph-traversal, connected
So, using v.lowlink := min(v.lowlink, w.lowlink) instead of v.lowlink := min(v.lowlink, w.index) will lead to a correct algorithm too.
The difference is that in this case, v.lowlink will not represent the vertex with the smallest id reachable from v nor the SCC top vertex, but jus... | {
"domain": "cs.stackexchange",
"id": 12015,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "graphs, graph-traversal, connected",
"url": null
} |
to calculate Distance by Latitude and Longitude using JavaScript. x A means the x-coordinate of point A y A means the y-coordinate of point A. Another method for calculating the distance between two points that fall on the same line is to plot the points and count the amount of boxes in between the two points. This cal... | {
"domain": "ciiz.pw",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9770226300899743,
"lm_q1q2_score": 0.8637263751995081,
"lm_q2_score": 0.8840392725805822,
"openwebmath_perplexity": 449.43494686701194,
"openwebmath_score": 0.6425132751464844,
"tags": null,... |
lagrangian-formalism, string-theory, variational-principle, variational-calculus, gauge
$$\delta S~=~\underbrace{\text{Bulk terms}}_{\propto \text{ EOMs}} - \underbrace{T\int d^2\xi ~\partial_a\left[ \sqrt{-\gamma}~\partial^aX^M ~\delta X_M \right]}_{\text {Boundary terms}} .$$
For the functional/variational derivativ... | {
"domain": "physics.stackexchange",
"id": 51248,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "lagrangian-formalism, string-theory, variational-principle, variational-calculus, ... |
environmental-protection, natural-disasters
What factors could affect the stability of the dam: seismic activity and seismic resistance of the the dam, terrorists with explosives or heavy machinery damaging a wall, heavy rain eroding a wall, excessive water ponding of water on top of the dam, weakening a wall, repeate... | {
"domain": "earthscience.stackexchange",
"id": 2677,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "environmental-protection, natural-disasters",
"url": null
} |
python, object-oriented, json, hash-map
def remove_word(self, word):
if word != None:
self.data.pop(word, None)
with open(self.file, 'w') as file:
json.dump(self.data, file)
return '\nDone!'
else:
return "\nHmm... how can you remove so... | {
"domain": "codereview.stackexchange",
"id": 28935,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, object-oriented, json, hash-map",
"url": null
} |
quantum-field-theory, operators, electrons, quantum-electrodynamics, observables
Title: What are the operators associated to the electron/electromagnetic quantum field? After reading through a number of questions on SE including What are field quanta? and What are quantum fields mathematically?, I am still struggling ... | {
"domain": "physics.stackexchange",
"id": 77910,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-field-theory, operators, electrons, quantum-electrodynamics, observables",... |
noise, gaussian, self-study, random-process, covariance
$$E\{A^2\}=\sigma_A^2+\mu_A^2\tag{3}$$
where $\mu_A=E\{A\}$ is the mean of $A$.
So we finally have
$$C_{ij}=\sigma_A^2+\mu_A^2+\sigma^2\delta_{ij}\tag{4}$$
The expression in your question is only valid if $\mu_A=E\{A\}=0$, i.e., if $A$ is a zero mean random varia... | {
"domain": "dsp.stackexchange",
"id": 6593,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "noise, gaussian, self-study, random-process, covariance",
"url": null
} |
python, object-oriented
Title: My note taking program migrated into a class I wrote a note taking program that works fine however I wanted to converted the program into a more OOP style program. As I am learning the concept of OOP and how classes work I did manage to move my program into a class but it just feels wron... | {
"domain": "codereview.stackexchange",
"id": 25983,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, object-oriented",
"url": null
} |
image-processing, image-compression, color
Title: Encoding YUV Color Space with Positive Numbers I got 2 hdr rgb textures/signals. When fetched one gets bicubicly interpolated and the other bilinearly. So I was thinking I can store as YUV and store Y from each texture in the bicubic one and the distribution of the res... | {
"domain": "dsp.stackexchange",
"id": 7343,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "image-processing, image-compression, color",
"url": null
} |
standard-model, symmetry-breaking, electroweak, pions
Title: QCD pion and electroweak symmetry breaking Equation (28.33) in Matthew Schwartz's QFT text book
$$
\mathcal{M}(\pi^+ \rightarrow \mu^+ \nu_\mu) = \frac{G_F}{\sqrt{2}}F_\pi p^\mu \bar{\psi}_{\nu_\mu}\gamma^\mu(1-\gamma^5)\psi_\mu \tag{28.33}
$$
where $F_\pi$... | {
"domain": "physics.stackexchange",
"id": 43470,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "standard-model, symmetry-breaking, electroweak, pions",
"url": null
} |
ruby-on-rails, ruby
I think I can use more scope but how can I combine them together? In general, how can I make this code much better?
The boss, when introducing the project, said one-to-many relationships for that kind of fields would be a pain in the back. What do you think about this pragmatic solution? Have you l... | {
"domain": "codereview.stackexchange",
"id": 37,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ruby-on-rails, ruby",
"url": null
} |
electromagnetism, electric-fields, charge, gauss-law
Title: Electric field inside a cylinder containing a grounded wire? Say we have a hollow cylinder at 100V.
I understand that if this cylinder were empty, you would have no electric field inside because if you drew a Gaussian surface, it would contain no charge.
Howe... | {
"domain": "physics.stackexchange",
"id": 54133,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "electromagnetism, electric-fields, charge, gauss-law",
"url": null
} |
general-relativity, spacetime, reference-frames, aether, frame-dragging
Title: We know there is no aether, so what is being dragged in frame dragging? I have read this question:
In stellar frame dragging what is the 'frame'?
There are several questions on this site about frame dragging, all of them take the frame that... | {
"domain": "physics.stackexchange",
"id": 64721,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "general-relativity, spacetime, reference-frames, aether, frame-dragging",
"url":... |
java, optimization, game, collections, playing-cards
Deck Class
public static class Deck {
private static ArrayList<Card> cards;
Deck() {
cards=new ArrayList<Card>();
for (int a=0; a<=3; a++){
for (int b=0; b<=12; b++){
cards.add( new Card(a,b) )... | {
"domain": "codereview.stackexchange",
"id": 4677,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, optimization, game, collections, playing-cards",
"url": null
} |
# Divergence In Polar Coordinates 2d | {
"domain": "cesenaticoopen.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9873750507184356,
"lm_q1q2_score": 0.8026049069391735,
"lm_q2_score": 0.8128673155708975,
"openwebmath_perplexity": 661.5806275918751,
"openwebmath_score": 0.893095850944519,
"tags... |
of a complex number z=a+bi can be written as z=r(cosθ+isinθ) r represents the absolute value or modulus, and the angle θ is the argument of the … $\sqrt{9i} = (9i)^{1/2}\nonumber$Use the polar form An easy to use calculator that converts a complex number to polar and exponential forms. tan Ө = 9/3 = 3. If you're behind... | {
"domain": "zong-music.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9799765569561563,
"lm_q1q2_score": 0.8101581796404121,
"lm_q2_score": 0.8267117962054048,
"openwebmath_perplexity": 770.443160506108,
"openwebmath_score": 0.8276697397232056,
"tag... |
samtools, sam, indexing
Title: How to Sort and Index a SAM file without converting it to BAM? Generally, I use samtools to sort and index BAM files. Samtools works also with BGZF compressed SAM but not with plain ones.
I have terabytes of plain SAMs at the moment and I would love to avoid compression/conversion. I hav... | {
"domain": "bioinformatics.stackexchange",
"id": 2065,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "samtools, sam, indexing",
"url": null
} |
java, algorithm, primes, mathematics, complexity
@Test
public void test_exponentNonZeroDecomposition() {
int a = exponentInDecomposition(3, 9);
assertEquals(2, a);
}
@Test
public void primesSmaller10() {
ArrayList<Integer> primesLessThan10 = findPrimesSmaller(10);
int two = primesLessThan10.ge... | {
"domain": "codereview.stackexchange",
"id": 12318,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, algorithm, primes, mathematics, complexity",
"url": null
} |
javascript, jquery, design-patterns
without the window reference. That's inconsistent and, if anything, quite redundant. JS resolves the window name in the same way as it resolves console or setTimeout: it scans the current scope, if it can't find the name there, it moves up to a higher scope until it reaches the glob... | {
"domain": "codereview.stackexchange",
"id": 4995,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "javascript, jquery, design-patterns",
"url": null
} |
homework-and-exercises, newtonian-mechanics, forces, waves, oscillators
Step 3 and 4: This process repeated again
Combining the steps give:
Matching it to an answer option:
There are 2 "humps" so I would choose B or D. As the pendulum is released from the far left (i.e. at position G), I would choose D, as the start... | {
"domain": "physics.stackexchange",
"id": 36644,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "homework-and-exercises, newtonian-mechanics, forces, waves, oscillators",
"url":... |
$= \dfrac {\sin^2\theta}{\cos\theta\cdot(\sin\theta-\cos\theta)} - \dfrac {\cos^2\theta}{\sin\theta\cdot(\sin\theta-\cos\theta)}$
$=\dfrac{1}{(\sin\theta-\cos\theta)}\big(\dfrac {\sin^2\theta}{\cos\theta}-\dfrac {\cos^2\theta}{\sin\theta})$
$=\dfrac{1}{(\sin\theta-\cos\theta)}\big(\dfrac {\sin^3\theta-\cos^3\theta}{\... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9724147201714923,
"lm_q1q2_score": 0.8039067178937063,
"lm_q2_score": 0.8267117940706734,
"openwebmath_perplexity": 954.5095679333192,
"openwebmath_score": 0.8040633201599121,
"tag... |
c#, parsing, rubberduck, antlr
private readonly bool _isAssignment;
public bool IsAssignment { get { return _isAssignment; } }
}
}
"Walking the tree" is done with an ANTLR TreeWalker, and uses a listener - a class that calls virtual methods whenever it enters or exits a grammar rule.
So I have 2 "listener... | {
"domain": "codereview.stackexchange",
"id": 12717,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c#, parsing, rubberduck, antlr",
"url": null
} |
botany
regrowing is actually something all plants can do provided they have enough resources, this is one way humans replicate crops. Weeds are often more sensitive to ground conditions, and don't do well in places where humans have not cleared and irrigated the land. weeds are often pioneer species good at taking ove... | {
"domain": "biology.stackexchange",
"id": 10812,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "botany",
"url": null
} |
cosmology, spacetime, space-expansion, redshift
the very idea of the actual "metric of space changing!" would seem to be that, those of us internal to that metric of space would have no clue that any such expansion is happening: the scale is just changing for everything.
It is the fact that matter is bound by forces ... | {
"domain": "physics.stackexchange",
"id": 70751,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "cosmology, spacetime, space-expansion, redshift",
"url": null
} |
c++, linked-list, pointers
template<class T>
bool DoubleLinkedList<T>::const_iterator::operator==(const_iterator other) const noexcept {
if (end_reached) return other.end_reached;
if (other.end_reached) return false;
return node == other.node;
}
template<class T >
bool DoubleLinkedList<T>::const_iterato... | {
"domain": "codereview.stackexchange",
"id": 31718,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c++, linked-list, pointers",
"url": null
} |
electrostatics, potential, voltage, boundary-terms
Anyway, $\nabla^2\int_S\left[\frac{1}{R}\frac{\partial \Phi}{\partial n’}-\Phi\frac{\partial(1/R)}{\partial n’}\right]\,da’$ is zero because once you move the Laplacian inside the integral, it hits the $\frac{1}{R}$ in the first term, and gives $0$ (because $\mathbf{x... | {
"domain": "physics.stackexchange",
"id": 91068,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "electrostatics, potential, voltage, boundary-terms",
"url": null
} |
ubuntu, ubuntu-precise, virtualbox, rosws, ros-package-path
and
rosws init ~/fuerte_workspace /opt/ros/fuerte
and
source /home/viki/groovy_workspace/setup.bash
When I look at my ROS_PACKAGE_PATH, all I see is
:/opt/ros/groovy/share:/opt/ros/groovy/stacks
So I am guessing something is wrong with rosws adding the rig... | {
"domain": "robotics.stackexchange",
"id": 12859,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ubuntu, ubuntu-precise, virtualbox, rosws, ros-package-path",
"url": null
} |
semantics, hoare-logic
Compute the weakest precondition for each of the following
assignment statements and postconditions:
$$a = a + 2b - 1\ \{a > 1\}$$ (where a > 1 is the postcondition)
His answer was: "$a > 2 - 2b$."
Is this correct? It seems that he broke the rules of equivalents, by using the ">" as "="
I ... | {
"domain": "cs.stackexchange",
"id": 2347,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "semantics, hoare-logic",
"url": null
} |
quantum-mechanics, electromagnetism, special-relativity, atomic-physics, hydrogen
Title: Is it a typo in David Tong's derivation of spin-orbit interaction? A few lines below equation 7.8 D. Tong writes
The final fact is the Lorentz transformation of the electric field: as electron moving with velocity $\vec{v}$ in an... | {
"domain": "physics.stackexchange",
"id": 62982,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-mechanics, electromagnetism, special-relativity, atomic-physics, hydrogen"... |
microbiology, bacteriology
Proteose Peptone No. 3 10g/L, Beef extract 10g/L, Yeast extract 5g/L, Dextrose 20g/L, Polysorbate 80 1g/L, Ammonium Citrate 2g/L, Sodium Acetate 5g/L, Magnesium Sulfate 0.1g/L, Manganese Sulfate 0.05g/L, Dipotassium Phosphate 2g/L. | {
"domain": "biology.stackexchange",
"id": 12167,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "microbiology, bacteriology",
"url": null
} |
google-apps-script, google-sheets
var lastRow = source_sheet.getLastRow();
var source_range = source_sheet.getDataRange();
var target_range = target_sheet.getDataRange();
var rowsToBeDeleted = []; | {
"domain": "codereview.stackexchange",
"id": 4919,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "google-apps-script, google-sheets",
"url": null
} |
Above I used the fact that $$\sin(60^\circ+\alpha^\circ)=\frac{\sqrt3}{2}\cos \alpha^\circ+\frac{1}{2}\sin \alpha^\circ$$ then $$\frac{P}{2^{29}}=\frac{\sin61^\circ\sin62^\circ\cdots\sin89^\circ}{\cos1^\circ\cos2^\circ\cdots\cos29^\circ}=\frac{\sin61^\circ\sin62^\circ\cdots\sin89^\circ}{\sin89^\circ\sin88^\circ\cdots\s... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9865717448632123,
"lm_q1q2_score": 0.8284578096642723,
"lm_q2_score": 0.8397339716830605,
"openwebmath_perplexity": 514.3350797754141,
"openwebmath_score": 0.9160798192024231,
"tag... |
java, beginner, linked-list
appendToTail
tail is set to n no matter what. Factor that out:
if (this.head == null) {
this.head = n;
} else {
this.tail.next = n;
}
this.tail = n;
It is actually a good place to assert an invariant:
if (this.head == null) {
assert(this.tail == ... | {
"domain": "codereview.stackexchange",
"id": 22112,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, beginner, linked-list",
"url": null
} |
python, algorithm, ruby, interval
Your to_s method is totally redundant, as @store.to_s will result in exactly the same string.
format_result could be simplified to
def format_result(rest)
@store = rest.each_slice(2).to_a
end
.clone.delete_if could be simplified to .reject.
filter_store as a whole could be simp... | {
"domain": "codereview.stackexchange",
"id": 6982,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, algorithm, ruby, interval",
"url": null
} |
ros, topic, message
Hi! I have a very simple problem, but I just cannot understand how to solve it. I need to transfer three coordinates between two nodes. One node is talker, which defines the coordinates and send it to other node, which is listener. Listener waits for the coordinates, make some operations with them ... | {
"domain": "robotics.stackexchange",
"id": 21482,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, topic, message",
"url": null
} |
optics, electromagnetic-radiation, geometric-optics, camera
The circular illumination due to the central yellow point source is also at the centre. But for off-centred red, green and blue point sources, the illumination is also off-centred as per our previous result. The corresponding inverted image formed is also sho... | {
"domain": "physics.stackexchange",
"id": 65545,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "optics, electromagnetic-radiation, geometric-optics, camera",
"url": null
} |
c#, algorithm, xamarin
Is it possible to review my code and share possible improvements?
In the UI side, I'll have only one list with itemTemplate and based on the BlockItems.Count. I'll display elements in one line or more. Here is an example of where we could combine the Factory Pattern along with a Builder Pattern ... | {
"domain": "codereview.stackexchange",
"id": 24241,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c#, algorithm, xamarin",
"url": null
} |
navigation, ros-melodic, base-global-planner, move-base, baseglobalplanner
Comment by jmyazbeck on 2021-06-28:
The how to is well explained here!
Comment by ParkerRobert on 2021-06-28:
Yep it is well explained! The solution in this case shows you how to edit the global planner source code, so that when planner_->makeP... | {
"domain": "robotics.stackexchange",
"id": 36583,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "navigation, ros-melodic, base-global-planner, move-base, baseglobalplanner",
"u... |
February 20, 2019
08:00 PM EST
09:00 PM EST
Strategies and techniques for approaching featured GMAT topics. Wednesday, February 20th at 8 PM EST
February 21, 2019
February 21, 2019
10:00 PM PST
11:00 PM PST
Kick off your 2019 GMAT prep with a free 7-day boot camp that includes free online lessons, webinars, and... | {
"domain": "gmatclub.com",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9496693617046215,
"lm_q1q2_score": 0.8090734754325861,
"lm_q2_score": 0.8519528038477825,
"openwebmath_perplexity": 2588.746083830586,
"openwebmath_score": 0.8692762851715088,
"tags": n... |
control, ros, gazebo, urdf
</link>
<joint name="weld" type="fixed">
<parent link="rod" />
<child link="cmass" />
</joint>
<link name="wor">
<inertial>
<mass value="100000" />
<!-- center of mass (com) is defined w.r.t. link local coordinate system -->
<origin xyz="0 0 0"... | {
"domain": "robotics.stackexchange",
"id": 10896,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "control, ros, gazebo, urdf",
"url": null
} |
python, recursion, python-3.x, exception-handling, file-system
Title: Python script to find large folders I wrote this script a few days ago to find all files which were taking up over a certain threshold of memory on the hard drive. A hard drive on one of my computers had just 6 GB left, so I needed to clean some sp... | {
"domain": "codereview.stackexchange",
"id": 7585,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, recursion, python-3.x, exception-handling, file-system",
"url": null
} |
entanglement, textbook-and-exercises, hadamard
Also note that, it doesn't make sense to write down the operation $H|11\rangle$ as you did in your question. This is because $H$ is a $2 \times 2$ unitary matrix, and $|11\rangle$ is a $4 \times 1$ unit vector. Thus, you can't operate $H$ on $|11\rangle$.
And you said "I... | {
"domain": "quantumcomputing.stackexchange",
"id": 2663,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "entanglement, textbook-and-exercises, hadamard",
"url": null
} |
# Resultant force coordinate for parallel 3d forces acting on a slab
Apologies if I have done something wrong, first time posting on a stack exchange website.
Four forces act perpendicular to the surface of a circular slab (assume mass of slab is 0 and middle of slab is at 0,0,0)(all forces in -y direction)
Force 1 i... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9632305297023094,
"lm_q1q2_score": 0.8385858793253966,
"lm_q2_score": 0.8705972801594706,
"openwebmath_perplexity": 413.23524514309486,
"openwebmath_score": 0.7419808506965637,
"ta... |
The desired model, without reference to how the binary variable might be encoded, therefore is
\eqalign{ E[Y\mid \text{Male}, X] &= \phi(\alpha + \beta_{\text{Male}} X) \\ E[Y\mid \text{Female}, X] &= \phi(\alpha + \beta_{\text{Female}} X). }\tag{*}
for some function $$\phi.$$
One way--by far the commonest--to expre... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9886682474702956,
"lm_q1q2_score": 0.8383588032845173,
"lm_q2_score": 0.847967764140929,
"openwebmath_perplexity": 766.4041506704853,
"openwebmath_score": 0.7704326510429382,
"tags... |
python, ros-kinetic
Return iteration for: (intensities, angle, range) | {
"domain": "robotics.stackexchange",
"id": 33248,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, ros-kinetic",
"url": null
} |
triangle
-
I agree but then again this method is a bit risky to use since it requires us to assume that the other angles are 60 and 90. So ill always be doubtful of the answer – MistyD Jun 17 '12 at 22:30
i'll upload an image of what i'm talking about, as soon as i figure out how to do that... – Joseph Skelton Jun 1... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9546474168650673,
"lm_q1q2_score": 0.8056222741367942,
"lm_q2_score": 0.8438950966654774,
"openwebmath_perplexity": 498.9157590476278,
"openwebmath_score": 0.8782363533973694,
"tag... |
c#, beginner, mysql, asp.net
This is unnecessary. Without it, it will propagate the exception up, the same as manually rethrowing the exception.
Remove Unneeded Controls
You seem to have both a radio button list and 4 radio buttons. We really only need the radio button list. There are also a few panels that aren't nee... | {
"domain": "codereview.stackexchange",
"id": 24870,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c#, beginner, mysql, asp.net",
"url": null
} |
potential-energy, rotational-kinematics
Title: Rotational Potential Energy of a Hamster Wheel Background
(unimportant back story)A colleague of mine showed me what i considered flawed statistics, that Internet Explorer had faster Index and array functions than Chrome(we are software developers...FWIW I'm not proud tha... | {
"domain": "physics.stackexchange",
"id": 13842,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "potential-energy, rotational-kinematics",
"url": null
} |
ros, navigation, sonar, robot-localization, transform
I believe there might be a connection with sometimes erratic data from the sonars, but I can't quite pinpoint it. I'll try improving their accuracy in the meantime.
EDIT 4:
After changing the covariance matrix robot_localization does not crash any more. But...
I ha... | {
"domain": "robotics.stackexchange",
"id": 20593,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, navigation, sonar, robot-localization, transform",
"url": null
} |
Now $$[KB_1B_2]=[KB_1C]$$ because $$\triangle KB_1B_2$$ and $$\triangle KB_1C$$ share the same altitude from $$K$$ and have the same base legth $$B_1B_2=B_1C$$. Furthermore $$\triangle KLB_2\cong \triangle CKA_2$$ because $$KL=CK$$, $$\angle KLB_2=60^\circ = \angle CKA_2$$, and $$LB_2=KB_2$$ (by symmetry). Therefore $$... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9875683495127004,
"lm_q1q2_score": 0.8027620376881655,
"lm_q2_score": 0.8128673201042493,
"openwebmath_perplexity": 168.96975051795374,
"openwebmath_score": 0.9729514718055725,
"ta... |
ros, service
For instance, I have a service running on a server that processes raw images and returns informations about them. Can I have a service that use those informations and another that register the output of server?
So, if I understand correctly, you want to send some raw images to the service server and get ... | {
"domain": "robotics.stackexchange",
"id": 24773,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, service",
"url": null
} |
nuclear-physics, dark-matter, experimental-technology
My understanding is that recoil of light nuclei [...]
recoil with greater energy
Correct. For a given WIMP mass, speed, and scattering angle, a lighter target nucleus (e.g. germanium) will be given a higher recoil energy than a more massive target nucleus (e.g. xe... | {
"domain": "physics.stackexchange",
"id": 85731,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "nuclear-physics, dark-matter, experimental-technology",
"url": null
} |
pauli-exclusion-principle
Alternatively, consider the electrons in two separated hydrogen atoms. In principle the two atoms are described by a single wavefunction regardless of their separation, and the two electrons cannot be in the same state. In practice once the atoms are more than a handful of Bohr radii apart th... | {
"domain": "physics.stackexchange",
"id": 23868,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "pauli-exclusion-principle",
"url": null
} |
thermodynamics, equilibrium, reference-request, vapor-pressure
$$
(We also have the initial conditions $L(0)=L_0, g(0)=0$ where $L_0$ is the initial mass of the liquid. The initial amount of gas is zero).
Question: Is this (admittedly very naive) model considered in the literature? Is it a reasonable model for describ... | {
"domain": "chemistry.stackexchange",
"id": 16581,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "thermodynamics, equilibrium, reference-request, vapor-pressure",
"url": null
} |
selected. As a result, a quadrilateral is formed with the two tangent lines and radii. Next lesson. Condition , C 1 C 2 = r 1 – r 2. Let c be the radius of circle which touches this circles as well as the common tangent to the circles. Creating Construction Geometry. Tangents to Circles Date_____ Period____ Determine i... | {
"domain": "fnaarccuneo.it",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9759464485047915,
"lm_q1q2_score": 0.8153871968170521,
"lm_q2_score": 0.8354835432479663,
"openwebmath_perplexity": 369.11882035919484,
"openwebmath_score": 0.6239675283432007,
"t... |
matlab, wavelet, dwt
The resulting "regions of influence" were later used in A Nonlinear Stein-Based Estimator for Multichannel Image Denoising: the shape of the mask (across scales and subbands) defines a Reference Observation Vector (ROV), on which we estimate the "denoised" coefficient, based on generalized thresho... | {
"domain": "dsp.stackexchange",
"id": 8973,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "matlab, wavelet, dwt",
"url": null
} |
classical-mechanics, hamiltonian-formalism, coordinate-systems, phase-space
Title: Hessian condition for solving Hamilton-Jacobi equation I am reading the book Classical dynamics: a contemporary approach by J. V. José and E. J. Saletan. In chapter 6.1, after deducing Hamilton-Jacobi (HJ) equation, the following is sta... | {
"domain": "physics.stackexchange",
"id": 36467,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "classical-mechanics, hamiltonian-formalism, coordinate-systems, phase-space",
"u... |
evolution, history, life
Title: First life forms to evolve controlled flight What was the first living organism able to fly in the skies and control their direction , not just Aeroplankton like bacteria and viruses carried by the winds but something like an winged insect or fish or something similar, and when di... | {
"domain": "biology.stackexchange",
"id": 5349,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "evolution, history, life",
"url": null
} |
• Can I say that, logarithmic function does not have its own definition except that it is originated as inverse of exponential(e^x) function? Nov 24 '16 at 13:34
• Expanding on Henning's comment, even "ln" is ambiguous in the wider community because it's interpreted as short for "logarithm" versus the esoteric "logarit... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9658995782141545,
"lm_q1q2_score": 0.8028007133020386,
"lm_q2_score": 0.8311430415844385,
"openwebmath_perplexity": 610.3537079469502,
"openwebmath_score": 0.9742763042449951,
"tag... |
python, performance, algorithm, python-3.x, recursion
return matches
def make_square(self, pos, square, size, trie):
if pos == size:
return [square]
for i in range(pos, size):
search_str = ''.join([w[i] for w in square])
candidates = self.search_trie(trie, sear... | {
"domain": "codereview.stackexchange",
"id": 29170,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, performance, algorithm, python-3.x, recursion",
"url": null
} |
newtonian-mechanics, forces, work, conservative-field
Title: If the work done by a force along a closed path is zero, is it necessarily conservative? I just had a simple doubt. If a force is conservative, we know that the work done by it around a closed path is zero. I believe the converse should also be true. I can't... | {
"domain": "physics.stackexchange",
"id": 62620,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "newtonian-mechanics, forces, work, conservative-field",
"url": null
} |
particle-physics, spacetime-dimensions, large-hadron-collider, particle-accelerators
Title: How does the LHC explore extra dimensions? The Large Hadron Collider (LHC) has been smashing particles for a long time and sometimes people say that it has found new dimensions. How is it even possible for a particle accelerato... | {
"domain": "physics.stackexchange",
"id": 32528,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "particle-physics, spacetime-dimensions, large-hadron-collider, particle-accelerato... |
to one of those variables where the others are held constant. Active 3 years, 9 months ago. image/svg+xml. In math a differential "dx" is more than just an indicator for building a derivative wrt x. Answer Save. Partial symbol synonyms, Partial symbol pronunciation, Partial symbol translation, English dictionary defini... | {
"domain": "aroundtheglo.be",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9546474220263197,
"lm_q1q2_score": 0.8016498693406963,
"lm_q2_score": 0.83973396967765,
"openwebmath_perplexity": 771.0954057964999,
"openwebmath_score": 0.8363189697265625,
"tags": ... |
bedtools
In that situation, it seems I need to use -split and -f 1.0. I thought of filtering a posteriori with e.g. awk '$10>0.5, but that doesn't seem to work either: when not using -d, the output of coverageBed does not separate the reads that cover the feature partially vs fully. It appears this is an issue that ha... | {
"domain": "bioinformatics.stackexchange",
"id": 2112,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "bedtools",
"url": null
} |
minimize the sum of squared residuals and satisfy the second order conditions of the minimizing problem. We project a vector of explanatory …. Sum-of-squares-of-residuals-calculator least squares residuals calculator, squared residuals calculator, how to find squared residuals, how to calculate the sum of squared resid... | {
"domain": "mauritius-koeln.de",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9877587232667824,
"lm_q1q2_score": 0.8294545577342662,
"lm_q2_score": 0.8397339736884712,
"openwebmath_perplexity": 477.09976571799604,
"openwebmath_score": 0.852555513381958,
"ta... |
differential-geometry
Remember: curl is only defined for vector fields and not for lone, individual vectors. With this in mind, curl is sometimes said to quantify the "vorticity" of a vector field (i.e. how swirly it is at a given point). Intuitively, if you imagine putting a little, tiny paddle-wheel into the vector ... | {
"domain": "physics.stackexchange",
"id": 18233,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "differential-geometry",
"url": null
} |
species-identification, zoology, ecology, species, food-web
How much does one need to eat to belong to a given category?
Note also that species like the cat, for example, are generally considered as being just carnivorous while in reality they often eat a very small amount of plant material. They also indirectly consu... | {
"domain": "biology.stackexchange",
"id": 4887,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "species-identification, zoology, ecology, species, food-web",
"url": null
} |
python, beginner, python-3.x, tic-tac-toe
if board[boardSpot][1] != " X " and board[boardSpot][1] != " O ":
board[boardSpot][1] = " O "
randomMove = False
drawBoard()
#Check if someone has won
def checkWinner(brd, lttr):
return ((brd[6][1] == lttr and brd[7][1] == lttr and brd[8... | {
"domain": "codereview.stackexchange",
"id": 19475,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, beginner, python-3.x, tic-tac-toe",
"url": null
} |
\longrightarrow \{T\subset \Spec(A)\text{ closed}\}$$ \end{exercise} \begin{definition} \label{definition-quasi-compact} A topological space $X$ is called {\it quasi-compact} if for any open covering $X = \bigcup_{i\in I} U_i$ there is a finite subset $\{i_1, \ldots, i_n\}\subset I$ such that $X = U_{i_1}\cup\ldots U_{... | {
"domain": "github.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9854964220125032,
"lm_q1q2_score": 0.8080019446376565,
"lm_q2_score": 0.8198933315126792,
"openwebmath_perplexity": 120.73245969658541,
"openwebmath_score": 0.9982831478118896,
"tags"... |
# Find a relation which is reflexive and symmetric but not transitive on integers
The question is stated as: Let $$A$$ be the set of integers, find a relation $$R$$ which is reflexive and symmetric in $$A$$ but not transitive in $$A$$.
By definition we have that.
• $$R$$ is reflexive in $$A \Leftrightarrow (\forall ... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9572778012346835,
"lm_q1q2_score": 0.80183500259045,
"lm_q2_score": 0.8376199694135333,
"openwebmath_perplexity": 325.09467379997216,
"openwebmath_score": 0.8400506377220154,
"tags... |
file, bash, linux
tailtoslack.sh
while true; do
FILETOWATCH=`ls -t /var/log/xxx/*.log | head -1`
tail $FILETOWATCH -f -n1 | grep -v "DEBUG:\|^$" --color=never --line-buffered | /root/slackcat &> /tmp/slackcat
sleep 31
done | {
"domain": "codereview.stackexchange",
"id": 18842,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "file, bash, linux",
"url": null
} |
graphene
See the images in the section "Coal Reserves" here. | {
"domain": "physics.stackexchange",
"id": 48841,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "graphene",
"url": null
} |
machine-learning, reinforcement-learning
Title: Existence of Optimal Policy for infinite-state MDPs It is well-know from Puterman's book (1994) that in any finite-state MDP, if there exists an optimal policy, then that policy is stationary and deterministic. How about MDPs with continuous state spaces with finite-acti... | {
"domain": "cs.stackexchange",
"id": 11773,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "machine-learning, reinforcement-learning",
"url": null
} |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.