text stringlengths 1 1.11k | source dict |
|---|---|
php, pagination
public function getCurrentPageNumber(): int;
public function getNumberOfPages(): int;
public function getTotal(): int;
public function getTotalOnCurrentPage(): int;
public function getTotalPerPage(): int;
}
In fact, the class implementing that interface doesnt really need those set... | {
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"tags": "php, pagination",
"url": null
} |
The basic approach was to execute a loop on sequential integers starting with 10, stopping only after the 10th solution is found. In each loop iteration, the root is checked for validity before proceeding to check the cube. I opted to skip some obvious code shortcuts due to their performance impact. That said, I'm sure... | {
"domain": "hpmuseum.org",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9787126444811033,
"lm_q1q2_score": 0.8413637791072295,
"lm_q2_score": 0.8596637469145054,
"openwebmath_perplexity": 1845.7878489250068,
"openwebmath_score": 0.45289504528045654,
"tags":... |
matrices, linear algebra is one of the information the. Vertices and incidence matrix vertex-edge incidences a finite simple graph, the matrix! A bridge to linear algebra-based algorithms for graph computation an n-by-n irreducible adjacency matrix––either binary. 2004 ) 201–219 square matrix is the perfect tool zip ( ... | {
"domain": "insulinoopornosc.pl",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9693242000616579,
"lm_q1q2_score": 0.8119252989491397,
"lm_q2_score": 0.837619961306541,
"openwebmath_perplexity": 950.8526806909368,
"openwebmath_score": 0.673037052154541,
... |
python, beginner, python-3.x, programming-challenge
That’s a good start. For each value of n, we start looping of the multiples, and if we find one, we add n to total and break out of the inner loop, to continue with the next n value.
But we can make it clearer. We want to know if n is a multiple of any of the multi... | {
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"openwebmath_score": null,
"tags": "python, beginner, python-3.x, programming-challenge",
"url": null
} |
bash
# sudo apt hangs when run from script, thats why terminal needed
install_zenity() {
have_command gnome-terminal && gnome-terminal --title="$1" --wait -- $1
have_command zenity && exit 0
exit 1
}
# check if zenity must be installed or text terminal can be used
# if fails = script exit
# to install zenity, ru... | {
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"openwebmath_score": null,
"tags": "bash",
"url": null
} |
neural-networks, keras, regularization, weights
Title: When would bias regularisation and activation regularisation be necessary? For Keras on TensorFlow, a layer class constructor comes with these:
kernel_regularizer=...
bias_regularizer=...
activity_regularizer=... | {
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"openwebmath_score": null,
"tags": "neural-networks, keras, regularization, weights",
"url": null
} |
c++, game, sfml
s_background.setTexture(*back);
s_background.setScale(ScaleX, ScaleY);
sf::Texture* title = getGlobalTextureHolder().getResource("title");
s_title.setTexture(*title);
sf::Texture* button = getGlobalTextureHolder().getResource("start_button");
s_button.setTexture(*button);
s... | {
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"openwebmath_score": null,
"tags": "c++, game, sfml",
"url": null
} |
java, api, networking, socket, web-services
Edit, some remarks after deeper code review
I reviewed UserController in the server module (#df5ba13).
Despite the fact that there is no tests, there is some thing that you can do to improve your code. I am specially thinking to the front controller and chain of responsibi... | {
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"tags": "java, api, networking, socket, web-services",
"url": null
} |
A. 30
B. 50
C. 60
D. 100
E. 150
2 artisans = 1 hr = 10 sets
6 artisans = 1 hr = 30 sets
6 artisans = 5 hr = 150 sets
E
_________________
We must try to achieve the best within us
Thanks
Luckisnoexcuse
Director
Joined: 04 Dec 2015
Posts: 750
Location: India
Concentration: Technology, Strategy
WE: Information Technolo... | {
"domain": "gmatclub.com",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 1,
"lm_q1q2_score": 0.8244619242200081,
"lm_q2_score": 0.8244619242200081,
"openwebmath_perplexity": 8065.338517964444,
"openwebmath_score": 0.9203011989593506,
"tags": null,
"url": "ht... |
python
for link in embed_links:
print(convert_to_regular_youtube_link(link)) The functional approach to your problem is a good start. But relying on splitting and indexing strings, more specifially URLs and accessing their parts by index may be error-prone.
Use standard library tools to parse URLs
There are urrlib... | {
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"openwebmath_score": null,
"tags": "python",
"url": null
} |
machine-learning, nlp
The idea is that the learners would pick a contextual deck (in this example, a deck related to travelling with planes). That deck would be generated by a tag "airport" made by the machine learning algorithm.
And thus, is there any good models I should look to?
Edit:
After much research, I came ac... | {
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"openwebmath_score": null,
"tags": "machine-learning, nlp",
"url": null
} |
homework-and-exercises, optics, interference
The text in pink says 'Interference between these 2 rays'.
I also found an article on Newton's Rings but I failed to understand how they arrived at the formula
$$r_N=\left[\lambda R\left(N-\frac{1}{2}\right)\right]^{1/2}$$
Could someone please help me out here, thank you!
E... | {
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"tags": "homework-and-exercises, optics, interference",
"url": null
} |
electromagnetism, particle-physics, tensor-calculus, multipole-expansion
So I get some result containing the following tensor:
$$B_{ij...k}^{(l)}(t) := \frac{(-1)^{l-1}}{(l-1)!} \int j_i \xi_j ... \xi_k d^3\xi$$
So far, I have understood the math. But now comes the tricky part. In the paper, it says that "we can decom... | {
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"tags": "electromagnetism, particle-physics, tensor-calculus, multipole-expansion",
"url"... |
homework-and-exercises, newtonian-mechanics, kinematics
Title: Problem understanding a kinematic derivation An object is moving with a changing acceleration that is given as a function of position as $$a(x)=-k\sqrt{v}$$ where $k$ is a positive constant. Initial velocity is $v_0$. It is found that the object is going t... | {
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"openwebmath_score": null,
"tags": "homework-and-exercises, newtonian-mechanics, kinematics",
"url": null
} |
information-theory, communication, superdense-coding
A deterministic protocol for $2 \text{ ebits } + 1 \text{ cbit } \rightarrow 2 \text{ cbits }$ cannot exist
This follows from the No-Signaling Principal, which states that the use of shared ebits alone cannot allow communication of information.
Alice has a two-bit m... | {
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"id": 3994,
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"lm_q1_score": null,
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "information-theory, communication, superdense-coding",
"url": null
} |
deep-learning, reinforcement-learning, openai-gym
From this URI: ppo explanation
I also saw that section 13.7 in Sutton's RL book seems to be a must-read for this type of problem as the section is titled: Policy parameterization for Continuous Actions.
Furthermore I also learned in the process of searching for a rea... | {
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"openwebmath_score": null,
"tags": "deep-learning, reinforcement-learning, openai-gym",
"url": null
} |
cosmology, universe
This plot clearly shows that solid line, which allows for the
primordial helium produced in the Big Bang, is a much better fit than
the dashed line which is the prediction of the Steady State model with
no primordial helium. The data for this plot were taken from Figure 1b
of a recent paper... | {
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"tags": "cosmology, universe",
"url": null
} |
c#, parsing
private static IEnumerable<IGrouping<Type, Token>> GroupTokens(IEnumerable<Token> tokens)
{
var subexpressionTypes = new Queue<Type>(new[]
{
typeof(Second),
typeof(Minute),
typeof(Hour),
typeof(DayOfMonth),
typeof(Month),
... | {
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"openwebmath_score": null,
"tags": "c#, parsing",
"url": null
} |
cc.complexity-theory, oracles
There is, however, another way in which oracles sometimes occur: as part of the input. For example, suppose I want to study algorithms for computing the volume of a given high-dimensional polytope. Classically, the polytope would need to be specified by providing a list of its facets or s... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "cc.complexity-theory, oracles",
"url": null
} |
arithmetic-circuits
Title: Is homogeneity required in Hyafil's arithmetic circuit decomposition theorem when applied to monotone circuits? I'm new to circuit complexity, and trying to understand Hyafil's decomposition theorem (Theorem 1 in [1], Lemma 3 in [2], Decomposition Lemma in [3], also mentioned in [4]). My que... | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "arithmetic-circuits",
"url": null
} |
python, python-3.x, rest
Don't add logging for stuff that's already logged by requests.
Pass args and kwargs implicitly instead of explicitly copying stuff.
Explicitly pass is_fallback instead of passing it implicitly in kwargs.
Just return the response. Don't convert it to JSON. It's like seven more characters at the... | {
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"openwebmath_score": null,
"tags": "python, python-3.x, rest",
"url": null
} |
ros, python, rosout, rospy, logging
Originally posted by kwc with karma: 12244 on 2011-06-15
This answer was ACCEPTED on the original site
Post score: 2
Original comments
Comment by bhaskara on 2011-06-20:
Right, in particular, the linking text says "this is how your configuration file should look", but the documenta... | {
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"tags": "ros, python, rosout, rospy, logging",
"url": null
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the tangent line at a point, calculating the length of the curve, and finding the area enclosed by the curve. 13 AREA POLAR COORDINATES If f IS continuous and nonnegative on the interval m, < — s 27, then the area of the region bounded by the graph of r between the radial lines and is given by S 27 You can use the same... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9871787846017969,
"lm_q1q2_score": 0.8116476622804025,
"lm_q2_score": 0.8221891261650247,
"openwebmath_perplexity": 544.7980623815874,
"openwebmath_score": 0.8461021780967712,
"ta... |
gazebo
Title: Robotic simulator install issue
(Forwarded from DRC Software Forum)
Hi ,
I am new to ubuntu platform . I installed ubuntu 12.10 and i tried to install the simulator . while performing the step
wget http://packages.ros.org/ros.key -O - | sudo apt-key add -
i am getting a error "no valid openPGP data ... | {
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} |
c, networking, unix, posix
if (!p) {
(void) fprintf (stderr, "%s: Failed to setup a socket.\n",
PROGRAM_NAME);
return -1;
}
errno = 0;
if (listen (master_fd, SOMAXCONN) == -1) {
perror ("listen()");
return -1;
}
return master_fd;
}
/* Synops... | {
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"tags": "c, networking, unix, posix",
"url": null
} |
ros, pointcloud-to-laserscan, ros-kinetic
[build] Failed: None.
[build] Runtime: 0.0 seconds total.
turtlebot@turtlebot-ThinkPad-X280:~/test_ws/src$ catkin build
-------------... | {
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"tags": "ros, pointcloud-to-laserscan, ros-kinetic",
"url": null
} |
The line is parallel to -3x+2y=9 and contains the point (-2,1) find the equation of each line in the. We will be going over how to come up with our own equations given certain information. Let’s label the points on the graph. As the two points are brought together (or, more precisely, as one is brought towards the othe... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9873750496039277,
"lm_q1q2_score": 0.8291323699645727,
"lm_q2_score": 0.8397339696776499,
"openwebmath_perplexity": 238.17182620148998,
"openwebmath_score": 0.7098960280418396,
"ta... |
javascript, jquery
Can anyone tell me whether I am being relatively efficient or whether there is anywhere that I can "trim the fat", so to speak? The code also counts the number of children and displays that number on the main parent. It'll be good if you can provide your HTML markup. Without it I can do this:
jQuery... | {
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} |
homework-and-exercises, quantum-field-theory, phonons
\langle\phi_l|\otimes\langle\psi_l|
|\phi_{l+1}\rangle\otimes|\psi_{l+1}\rangle
\\
= e^{-\delta (S_e + S_p + S_{ep})}\langle \phi_l| \phi_{l+1} \rangle \langle \psi_l |\psi_{l+1} \rangle\,.
$$
The rest follows the usual procedure: reinsert the term into the product... | {
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"url": null
} |
the Euler-Bernoulli bending beam theory, the governing differential equations are. For example if you are examining the stresses on a beam, you need to split up that beam in smaller beams that will allow you to get a clear picture of the entire system. As the plots above show, the effect of changing angle on torque for... | {
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"lm_q1_score": 0.984093612020241,
"lm_q1q2_score": 0.8068517944104765,
"lm_q2_score": 0.8198933359135361,
"openwebmath_perplexity": 1084.4198485600286,
"openwebmath_score": 0.6988890767097473,
"tags": null,
... |
c++, programming-challenge, image, vectors, ascii-art
I M N: Creates a new table M × N (up to 250 × 250) with white (O) pixels.
C: Clears the table to white.
L X Y C: Colors the pixel with coordinates (X, Y) in colour C. (A "colour" is a single character.)
V X Y1 Y2 C: Draws the vertical segment in the column X betwe... | {
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"tags": "c++, programming-challenge, image, vectors, ascii-art",
"url": null
} |
neural-network, predictive-modeling
Title: Does ANN returns the same prediction for the same input? Does ANN predictable? By this I mean that if I re-run the same script over and over, does it make sense that the error (MAE / MSE / R^2) is different on every run?
if true, then a follow-up question: is it a good practi... | {
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"tags": "neural-network, predictive-modeling",
"url": null
} |
electromagnetism, particle-physics, electromagnetic-radiation
Note that due to the large mass of the proton compared to the mass of the electron the radiation loss is much smaller as for electrons, but at energies of the LHC the effect nevertheless is sensible. | {
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"tags": "electromagnetism, particle-physics, electromagnetic-radiation",
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} |
kalman-filters, estimation, maximum-a-posteriori-estimation, bayesian-estimation
Yes, although you can discretize time and make some limit arguments to design a continuous time Kalman filter. For a more general non-linear filter that allows time to be continuous, you can look at the section about the Kalman-Bucy filte... | {
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"tags": "kalman-filters, estimation, maximum-a-posteriori-estimation, bayesian-estimation",
"u... |
homework-and-exercises, ideal-gas
We start heating the cylinder. Once the gas has reached temperature $\tilde{T}$ given by $p_{1}V = n_{0}R\tilde{T}$, i.e.
$$ \tilde{T} = \frac{p_{1}}{p_{0}} T_{0} \approx 373\ \mathrm{K}, $$
the valve opens and the gas starts leaking out. We keep heating the cylinder, gas is coming ou... | {
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"tags": "homework-and-exercises, ideal-gas",
"url": null
} |
ros, ros-service
return 0;
}
Originally posted by Winston on ROS Answers with karma: 180 on 2016-08-28
Post score: 0
Yep, definitely looks like you've created a deadlock.
By default, roscpp runs in a single thread and processes your service callbacks as part of ros::spinOnce() (or ros::spin()). Since service calls a... | {
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"tags": "ros, ros-service",
"url": null
} |
cr.crypto-security
Title: Difference between theory and practice of security and cryptography? What interesting differences are there between theory and practice of security and cryptography?
Most interesting will of course be examples that suggest new avenues for theoretical research based on practical experience :).... | {
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"url": null
} |
java, android
import com.michaelnares.runtracker.R;
import com.michaelnares.runtracker.data.RunPoint;
import com.michaelnares.runtracker.utils.PermissionsHandler;
import com.michaelnares.runtracker.utils.RunsViewModel;
import com.michaelnares.runtracker.utils.Utils;
import org.json.JSONException;
import java.io.IOEx... | {
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"tags": "java, android",
"url": null
} |
the given answers and click over the c Expression notations are not reverse (or so) of each other, rather operators used in the expression have different arrangements. We have also seen an example of expression tree comprising the mathematical expression. The nifty thing about tree's is that you can translate equivalen... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9626731105140616,
"lm_q1q2_score": 0.8275751818913745,
"lm_q2_score": 0.8596637559030338,
"openwebmath_perplexity": 2014.2897150435817,
"openwebmath_score": 0.2648802101612091,
... |
ros, position
double x = transform.getOrigin().x();
double y = transform.getOrigin().y();
double dist = sqrt(x*x + y*y);
So , but I need to calculate the distance between the 4 vectors (which are formed by the 4 corner points of the rectangle) to that fixed point. So how to get that vectors fist, with the hel... | {
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"openwebmath_score": null,
"tags": "ros, position",
"url": null
} |
of size $n$ is denoted by $I_{n}$. Plus, tomorrow… We will see two types of matrices in this chapter. To work with Python Matrix, we need to import Python numpy module. Creating a Matrix in NumPy; Matrix operations and examples; Slicing of Matrices; BONUS: Putting It All Together – Python Code to Solve a System of Line... | {
"domain": "beterontleden.nl",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9766692325496973,
"lm_q1q2_score": 0.8358834846807569,
"lm_q2_score": 0.8558511488056151,
"openwebmath_perplexity": 659.2288468409985,
"openwebmath_score": 0.5261455774307251,
"tags... |
java, algorithm, data-mining
return basicAssociationRuleSet;
}
private void checkMinimumConfidence(double minimumConfidence) {
if (Double.isNaN(minimumConfidence)) {
throw new IllegalArgumentException(
"The input minimum confidence is NaN.");
}
if (mini... | {
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"tags": "java, algorithm, data-mining",
"url": null
} |
Note that by letting $k=m+n$, we have that (terms can be arranged because they are non-negative), \begin{align} \sum^{\infty}_{m=1}\sum^{\infty}_{n=1}\frac{m\cdot n}{(m+n)!} &=\sum^{\infty}_{k=2}\frac{1}{k!}\sum_{n=1}^{k-1}n(k-n)= \frac{1}{6}\sum^{\infty}_{k=2}\frac{k^3-k}{k!}\\&=\frac{1}{6}\sum^{\infty}_{k=2}\frac{k(k... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9697854120593484,
"lm_q1q2_score": 0.8123116252213315,
"lm_q2_score": 0.8376199673867852,
"openwebmath_perplexity": 313.304632465339,
"openwebmath_score": 0.9957062005996704,
"tags... |
sql, mysqli, tic-tac-toe
I would recommend a more normalized approach to this. So let's see what tables we could use: | {
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"tags": "sql, mysqli, tic-tac-toe",
"url": null
} |
graphs
Graphclass: cluster
Definition:
A graph is a cluster graph if it is a disjoint union of cliques.
Equivalent classes:
2-leaf power
$P_3$-free | {
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"tags": "graphs",
"url": null
} |
c, strings
Title: Alternative to using strncpy() as 'safe' version of strcpy() I am thinking of using this as part of a header file to give me a useful string-manipulation tool. Elements is size of dest to prevent overflow:
int copystring(char *dest,char *source,int elements)
{
int run,omitted=0;
for(run=0;run... | {
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"openwebmath_score": null,
"tags": "c, strings",
"url": null
} |
deep-learning, comparison, intelligent-agent, learning-agents
Title: What is the difference between learning and non-learning agents? What is the difference between learning agents and other types of agents?
In what ways learning agents can be applied? Do learning agents differ from deep learning? The key difference b... | {
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"openwebmath_score": null,
"tags": "deep-learning, comparison, intelligent-agent, learning-agents",
"url": null
} |
sequence-alignment, read-mapping, reads
Title: What is local realignment and what is the problem it solves? I am trying to understand local realignment but I could not get a clear idea of what is the problem solved by it.
For example, reading Homer and Nelson (2010): | {
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"tags": "sequence-alignment, read-mapping, reads",
"url": null
} |
gene, ensembl
During the alignment step before you received your data, someone used a top level assembly version of the reference genome. This includes extra, accessioned scaffolds tacked on to the end of the file that contain the fix. These scaffolds represent what will be found in the next major release of the genom... | {
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"tags": "gene, ensembl",
"url": null
} |
# Partial fraction decomposition
## Homework Statement
What is the partial fraction decomposition in ##\mathbb{R}[X]## of ##F = \frac{1}{X^{2n} - 1 } ##, ##n\ge 1##.
## The Attempt at a Solution
Is this correct ?
## F = \frac{1}{2n}(\frac{1}{X-1} - \frac{1}{X+1} + 2 \sum_{k = 1}^{n-1} \frac{
\cos (\frac{k\pi}{n})X... | {
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"lm_q2_score": 0.8519528038477825,
"openwebmath_perplexity": 2185.3668015142666,
"openwebmath_score": 0.8888143301010132,
... |
ros, installation, ros-electric
Title: cannot install ros electric source (Checkout problem, after uninstalling)
Hi!
I had a mess because I installed the source and binary electric ros versions. I tried to take everything out and install the source version again, but it does not work. It says there is a problem with ... | {
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"openwebmath_score": null,
"tags": "ros, installation, ros-electric",
"url": null
} |
chromatography
Title: What inference can be made from the fact that there is no reversal in how three components eluate? I gave an answer this question about TLC. I now realize that I am blundering my way through this question.
The problem statement doesn't specify if the compounds to be eluted are polar or non-polar... | {
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"id": 7569,
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "chromatography",
"url": null
} |
c++, object-oriented, interview-questions, polymorphism
Triangle::TriangleSides::TriangleSides(double a, double b, double c) : m_a(a), m_b(b), m_c(c)
{
}
double Triangle::TriangleSides::Area()
{
const double s = (m_a + m_b + m_c) * .5;
return sqrt(s * (s - m_a) * (s - m_b) * (s - m_c));
}
Triangle::TriangleB... | {
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"openwebmath_score": null,
"tags": "c++, object-oriented, interview-questions, polymorphism",
"url": null
} |
quantum-mechanics, electrons, schroedinger-equation, orbitals, pauli-exclusion-principle
Please be patient with me, new to this forum and just an amateur fan of physics. Any answer based on analogies rather than mathematics is going to be misleading, so please bear this in mind when you read this.
Most of us will have... | {
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"tags": "quantum-mechanics, electrons, schroedinger-equation, orbitals, pauli-exclusion-pri... |
quantum-mechanics, particle-physics, matter, bohmian-mechanics
Let's talk about #3 some more. You could make a spin gerlach with different calibrations. Each calibration send a left going one to the left again, and one that went right goes right again. But by basically flipping it upside down (or flipping yourself ... | {
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"tags": "quantum-mechanics, particle-physics, matter, bohmian-mechanics",
"url": null
} |
coordination-compounds, spectroscopy, molecular-orbital-theory, uv-vis-spectroscopy
Benzene
Toluene
$o$-Xylene
$p$-Xylene
The coordination complex between the solvent and $I_2$ is also absorbing around $300 \; nm$ I guess there is some explanation with the MO diagram ? Iodine is highly polarisable and will form a (Mu... | {
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"tags": "coordination-compounds, spectroscopy, molecular-orbital-theory, uv-vis-spectrosc... |
ros-melodic, android
Edit 2:
Ok for having append my own answer to the first post, even if it may be more difficult to "follow a discussion" in the future as it becomes more and more detailed.
true, but at least we keep the chronological ordering of interactions. ROS Answers is a Q&A type site, which works best if t... | {
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"openwebmath_score": null,
"tags": "ros-melodic, android",
"url": null
} |
ruby-on-rails, ruby
Title: Filtering (search) a model with multiple params in hash This function in my Profile model receive a hash from a search form and should filter the table depending on those values. I guess there is something like a pattern for such a standard behavior, right now I ended up with this (unfortuna... | {
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"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ruby-on-rails, ruby",
"url": null
} |
javascript, beginner, html, angular.js, calculator
<table ng-show="showSquares">
<tr>
<th>intial</th>
<th>square</th>
</tr>
<tr ng-repeat="i in k">
<td>{{ i + 1 }}</td>
<td>{{square(i + 1)}}</td>
</tr>
</table>
</div>
</body> Alright - A couple of things:
... | {
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"openwebmath_score": null,
"tags": "javascript, beginner, html, angular.js, calculator",
"url": null
} |
particle-physics, experimental-physics, higgs, large-hadron-collider, beyond-the-standard-model
I'd like to know whether this new particle is now officially out or not, and a bit more information about it (its nature, mass, etc. if known). One of the searches performed at the LHC consists in selecting events in which ... | {
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "particle-physics, experimental-physics, higgs, large-hadron-collider, beyond-the-s... |
quantum-chemistry, computational-chemistry, multi-reference
Title: Why is no dynamical correlation recovered in the CASSCF method? Configuration interaction is the only certain way to get a calculation to converge toward the exact solution of the many-body Schrödinger equation (within the approximations used for the f... | {
"domain": "chemistry.stackexchange",
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-chemistry, computational-chemistry, multi-reference",
"url": null
} |
navigation, move-base
<param name="laser_z_hit" value="0.5"/>
<param name="laser_z_short" value="0.05"/>
<param name="laser_z_max" value="0.05"/>
<param name="laser_z_rand" value="0.5"/>
<param name="laser_sigma_hit" value="0.2"/>
<param name="laser_lambda_short" value="0.1"/>
<param name="lase... | {
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"id": 19275,
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "navigation, move-base",
"url": null
} |
c++, quiz, sfml
textScore.setFont(font); //Outputs score
textScore.setCharacterSize(30);
textScore.setColor(sf::Color::Yellow);
textScore.setPosition(550,50);
questionText.setFont(font); //Outputs question text
questionText.setCharacterSize(60);
questionText.setColor(sf::Color::Red);
que... | {
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"openwebmath_score": null,
"tags": "c++, quiz, sfml",
"url": null
} |
Hope it helps.
_________________
Kudos [?]: 124571 [0], given: 12079
Senior Manager
Status: Bring the Rain
Joined: 17 Aug 2010
Posts: 396
Kudos [?]: 47 [0], given: 46
Location: United States (MD)
Concentration: Strategy, Marketing
Schools: Michigan (Ross) - Class of 2014
GMAT 1: 730 Q49 V39
GPA: 3.13
WE: Corporate ... | {
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"lm_q1_score": 0.9433475746920261,
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"lm_q2_score": 0.8723473680407889,
"openwebmath_perplexity": 1443.511189159083,
"openwebmath_score": 0.5681440234184265,
"tags": n... |
geology, mineralogy, moon, economic-geology, earth-moon
Title: Which Earth minerals would Moon colonists miss the most? In my science-based novel, Moon colonists need to return to Earth to collect some rare or absent mineral(s) Ideally, something they could derive from seawater. Which minerals might they be...? Feels ... | {
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"openwebmath_score": null,
"tags": "geology, mineralogy, moon, economic-geology, earth-moon",
"url": null
} |
form by finding the modulus and argument of the complex number. This website uses cookies to ensure you get the best experience. an idea ? The computation of the complex argument can be done by using the following formula: arg (z) = arg (x+iy) = tan-1(y/x) Therefore, the argument θ is represented as: θ = tan-1(y/x) num... | {
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"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9553191297273498,
"lm_q1q2_score": 0.8119937310837113,
"lm_q2_score": 0.8499711832583695,
"openwebmath_perplexity": 564.562462145745,
"openwebmath_score": 0.786299586296081... |
Re: The sequence a1, a2, … , a n, … is such that an = 2an-1 - x [#permalink] 01 Aug 2017, 11:23
Display posts from previous: Sort by
# The sequence a1, a2, … , a n, … is such that an = 2an-1 - x
new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Powered by phpBB © phpBB Group | E... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 1,
"lm_q1q2_score": 0.8459424431344437,
"lm_q2_score": 0.8459424431344437,
"openwebmath_perplexity": 6155.931677677023,
"openwebmath_score": 0.6966903209686279,
"tags": null,
"url": "... |
statistical-mechanics, lagrangian-formalism, variational-principle
&= \int dt\ d^3a\ \rho_0\ \left( \mathcal{L} - U(\rho, s) \right) \\
&= \int dt\ d^3q\ \rho \left( \mathcal{L} - U(\rho, s) \right)
\end{align}
which reproduces Morrison's results. In practicing using this formalism, it seems that best practice is to... | {
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"openwebmath_score": null,
"tags": "statistical-mechanics, lagrangian-formalism, variational-principle",
"url": null... |
newtonian-mechanics, newtonian-gravity, orbital-motion
Image courtesy of: http://faculty.wwu.edu/vawter/PhysicsNet/Topics/Gravity/BinaryStars.html The equation of motion in polar coordinates of this system, which is the two-body problem, can be written in terms of the relative instantaneous distance $r=r_1+r_2$ betwee... | {
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"id": 7288,
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"openwebmath_score": null,
"tags": "newtonian-mechanics, newtonian-gravity, orbital-motion",
"url": null
} |
Let me rephrase the construction: you have a map $$\varphi : [0,1] \times M \to \mathbb{R}^n$$ which for each $t \in [0,1]$ is an embedding ($\varphi(t,x) = x+a(t)$ in your notation) and is transverse to $N \subset \mathbb{R}^n$. In particular, it follows that the map $\varphi$ is transverse to $N$, and so $$X:=\varphi... | {
"domain": "mathoverflow.net",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9805806478450309,
"lm_q1q2_score": 0.8171419634182601,
"lm_q2_score": 0.8333245870332531,
"openwebmath_perplexity": 101.62919391987643,
"openwebmath_score": 0.9650020003318787,
"tag... |
optics, laser, experimental-technique
Martin means here a builder's Dumpy Level. They are compact and good quality ones can now be bought for a few hundred dollars. They are also available with standard camera tripod mounts: check this before you get one because the builder's tripods are generally too bulky to use in ... | {
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "optics, laser, experimental-technique",
"url": null
} |
python, object-oriented, python-3.x, web-scraping, xpath
YellowPage.Crawl("pizza","florida")
If you've got a single method, there is probably not much sense in having a class and just have a separate function instead. More info at Stop Writing Classes.
If you do need a classmethod, the first argument to such a method... | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, object-oriented, python-3.x, web-scraping, xpath",
"url": null
} |
c++, algorithm, programming-challenge, time-limit-exceeded
int main()
{
int n;
int helper = 0;
int boo = 0;
string str;
int j = 0;
int a1,a2,a3,a4,a5;
while (cin >> n)
{
while(j < 10)
{
i[j] = j;
j++;
}
do
{
a1 ... | {
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"tags": "c++, algorithm, programming-challenge, time-limit-exceeded",
"url": null
} |
$$= \frac{\pi^2}{6} - \frac{1}{2}*\frac{\pi^2}{6}$$
$$= \frac{\pi^2}{12}$$
Comment if you have questions.
• How do you know that? – inggumnator Aug 28 '14 at 0:08
• @inggumnator I'll post shortly the solution. – Varun Iyer Aug 28 '14 at 0:08
• @inggumnator do you understand now how it is derived? I hope this helps. ... | {
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"openwebmath_perplexity": 559.7979730837434,
"openwebmath_score": 0.885866641998291,
"tags... |
python, python-3.x, parsing, meta-programming
looks like it could be
for rule, item in reversed(zip(self.rules, parser.stack)):
Imports
import inspect
should appear at the top, not in function scope, unless you have a really good reason.
Generator
This
match_rules = []
for arg in args:
if arg == None or type(arg... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, python-3.x, parsing, meta-programming",
"url": null
} |
electric-fields, electric-current, potential
What happens after that? Pretty much nothing, because air is basically an insulator. Nothing is going to come along and push more current through the bulb.
The processes that ionize the atmosphere, creating that natural electric field, produce a very, very small current. It... | {
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"openwebmath_score": null,
"tags": "electric-fields, electric-current, potential",
"url": null
} |
Samuelb88
You can use the fact that $0< S_n< r^nS_1$, to argue that $|S_n- 0|= |S_n|< |S_1|r^n< \epsilon$ implies that $r^n< \epsilon/|S_1|$. How large does n have to be in order that that be true?
Great. I would have to choose n to be an integer greater than $$ln ( \frac{( \epsilon }{|S_1| }) / ln(r)$$. This choice f... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9683812309063187,
"lm_q1q2_score": 0.8069758973527671,
"lm_q2_score": 0.8333245953120234,
"openwebmath_perplexity": 267.80455661422707,
"openwebmath_score": 0.970655083656311,
"tag... |
localization, navigation, gps, ros-kinetic, transform
Originally posted by Hypomania on ROS Answers with karma: 120 on 2019-02-07
Post score: 0
The problem with lat/long space is that it's non-Euclidean, especially when you get far from the equator. For example if you develop your system in Texas and then take it to ... | {
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"openwebmath_score": null,
"tags": "localization, navigation, gps, ros-kinetic, transform",
"url": null
} |
c++, c, sorting, quick-sort
cout << "Before sorting : " << endl;
print(test, N);
quickSort(test, 0, N-1);
cout << endl << endl << "After sorting : " << endl;
print(test, N);
return 0;
}
/**
* Quicksort.
* @param a - The array to be sorted.
* @param first - The start of the sequence to be sor... | {
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"id": 18677,
"lm_label": null,
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c++, c, sorting, quick-sort",
"url": null
} |
java
Title: Creative triangle stacks using for loops I was wondering if someone can help me out with achieving the following result (using for loops):
|../\..../\..|
|./\/\../\/\.|
|/\/\/\/\/\/\|
This is the code that I have written:
public static void drawBody1(){
for (int line = 1; line <= 3; line++){
Syst... | {
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"id": 26035,
"lm_label": null,
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "java",
"url": null
} |
python, parsing, regex, numpy, pandas
64.53, 63.78, 63.50, 63.21, 62.91, 62.40, 61.88, 61.37, 61.27, 61.17, 61.05, 61.38, 61.71, 62.04, 62.94, 63.85, 64.75, 66.31, 67.87, 69.43, 70.89, 72.34, 73.78, 72.56, 71.34, 70.12, 69.54, 68.96, 68.38, 67.66, 66.94, 66.23, | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, parsing, regex, numpy, pandas",
"url": null
} |
ros-melodic
Comment by tfoote on 2021-03-31:
When you ask the questions think about who will answer them and what time it will take and if there's a concrete answer or if you're just asking open ended questions with arbitrary responses that will take someone a lot of time to respond. If I can't answer the question off... | {
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} |
ros-lunar
ros::Subscriber sub_camera;
ros::Subscriber sub_imu; ... | {
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"openwebmath_score": null,
"tags": "ros-lunar",
"url": null
} |
coronavirus, vaccination, mrna
The importance of injecting vaccines into muscle
Different patients need different needle sizes
Unmodified mRNA in LNPs constitutes a competitive technology for prophylactic vaccines
Differential dependence on target site tissue for gene gun and intramuscular DNA immunizations (1997) | {
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"tags": "coronavirus, vaccination, mrna",
"url": null
} |
quantum-mechanics, mathematical-physics
Conditions for the spectrum to have a continuous part or to be purely continuous seem a lot more complicated. The main purpose of the paper cited above was to provide a counter-example to the 'rule-of-thumb' I gave in the question. Namely, it shows that the Hamiltonian
$$ H = - ... | {
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"tags": "quantum-mechanics, mathematical-physics",
"url": null
} |
general-relativity, spacetime, differential-geometry, curvature, spacetime-dimensions
(This last question should not be asked as a seperate question as it is directly linked to my original question)
So, why is there no extra dimension in GTR? I cannot imagine a way of curving spactime in a manner that we can notice it... | {
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"openwebmath_score": null,
"tags": "general-relativity, spacetime, differential-geometry, curvature, spacetime-dimensi... |
python, pygame, battle-simulation, pokemon
@staticmethod
def opponent_move():
opponent = Game.opponent.pokemon
pokemon = Game.current_pokemon
strongest_move = computer_move.opponent_move(pokemon, opponent)
type_advantage = computer_move.move_type_advantage(pokemon, strongest_move)
... | {
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"openwebmath_score": null,
"tags": "python, pygame, battle-simulation, pokemon",
"url": null
} |
with repetition. Now lemme, permutations. To implement the clustered permutation test, assume there are two treatment groups with unknown outcome distributions F and G, with M and N clusters, respectively. The idea is to fix the first character at first index and recursively call for other subsequent indexes. Zero fact... | {
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"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.982287697666963,
"lm_q1q2_score": 0.8534378486979414,
"lm_q2_score": 0.8688267711434708,
"openwebmath_perplexity": 674.6376522032865,
"openwebmath_score": 0.5992879271507263,
"... |
python, beginner, memory-optimization, bioinformatics, data-visualization
print(ipath)
dsize = 5
if args.dump_size:
dsize = args.dump_size
cachedir = ".cache/"
if args.temp:
cachedir = args.temp
debugpath = '.cache/debug%d.log' % uuid
if args.debug_file:
debugpath = args.debug_file
if not exists(filepath):... | {
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"openwebmath_score": null,
"tags": "python, beginner, memory-optimization, bioinformatics, data-visualization",
"... |
solutions, mixtures
Or is there anything that I miss to understand in the term - composition? Your question is one of my favorite question. The concept of microscopic homogeneity and macroscopic homogeneity can explain this. Like if you add sugar and sand together and mix them well, you can see a homogeneous mixture b... | {
"domain": "chemistry.stackexchange",
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "solutions, mixtures",
"url": null
} |
reproduction, zoology
But there are exceptions to this general rule.
Fish
In many fish species (e.g. pipefish, scissortail sergeant and seahorses), males are choosy and females are competing. In these species, females deposit their eggs in a special brooding pouch that the male possesses. The male then has the energy ... | {
"domain": "biology.stackexchange",
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"lm_q2_score": null,
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"openwebmath_score": null,
"tags": "reproduction, zoology",
"url": null
} |
computability
Now, consider the machine $M$ which on input $n$ simulates all Turing machines of length $< n$ on the empty input for $n$ steps, and returns $0.\hat{r_1}...\hat{r_{2^n-1}}$ where $\hat{r_i}=1$ if the $i$'th Turing machine halts on the empty input in less than $n$ steps, and $\hat{r_i}=0$ otherwise. Clear... | {
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"tags": "computability",
"url": null
} |
Now, there’s a quicker way to build the transformation matrix that you’re looking for by using an important property of transformation matrices: their columns are the images of the basis vectors, but that’s getting ahead of where you appear to be in this subject.
Note that since you haven’t specified how the vertices ... | {
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"lm_q1_score": 0.9859363700641143,
"lm_q1q2_score": 0.8494218618882213,
"lm_q2_score": 0.8615382165412809,
"openwebmath_perplexity": 286.50177575210535,
"openwebmath_score": 0.7235716581344604,
"ta... |
harmonic-oscillator
$$
y=e^{\alpha t}\left(C_1\cos\beta t+C_2\sin\beta t\right)
$$
If you initialize oscillations with large amplitude in your car manually and then record $y(t)$ with a camera, you should be able to estimate $\alpha$ (basically by registering how fast the amplitude decrease between each oscillation). ... | {
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"openwebmath_score": null,
"tags": "harmonic-oscillator",
"url": null
} |
machine-learning, deep-learning, classification, predictive-modeling, feature-selection
I see in feature engineering tutorials (and tools) here and here, they usually compute basic statistics features based on numeric column such as max(loan amount), min(loan amount), sum(loan amount),stddev(loan amount), average (loa... | {
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"tags": "machine-learning, deep-learning, classification, predictive-modeling, feature-... |
and similarly:
$$\Phi_{\mathcal{N}(p,2p)} = \Phi_{\mathcal{N}(0,1)}(\frac{x-p}{\sqrt{2p}}) .....(4)$$
Now the equations (1), (3) and (4) collectively implies the equation (0). This proves that even if the d.f. $$p \to \infty,$$ the difference between the CDF's of $$\chi^2_p$$ and $$\mathcal{N}(p,2p)$$ indeed goes to ... | {
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"lm_q1_score": 0.9732407144861112,
"lm_q1q2_score": 0.8192989866795588,
"lm_q2_score": 0.8418256393148982,
"openwebmath_perplexity": 145.25920702415735,
"openwebmath_score": 0.8971330523490906,
"ta... |
1. Write a payoff matrix for Mr. Thaggert.
2. If you were his investment advisor, what strategy would you advise?
#### Solution
1. .02.03.01.01.02.03.01.01 size 12{ left [ matrix { - "." "02" {} # "." "03" {} ## "." "01" {} # - "." "01"{} } right ]} {}
2. stocks=2/7stocks=2/7 size 12{"stocks"=2/7} {}, CD's=5/7CD's=5... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9525741227833249,
"lm_q1q2_score": 0.8188934481679507,
"lm_q2_score": 0.8596637559030338,
"openwebmath_perplexity": 11980.602721686899,
"openwebmath_score": 0.7934074997901917,
"tags": null,... |
Since you have specified all 5 specific cards that you want, you don't need to consider the aces separately from the king. The probability of selecting these 5 cards is then
(Probability choosing any one of the 5) $\times$ (Probability of choosing one of the remaining 4) $\times$ ..., i.e. $$\frac{5}{52} \times \frac{... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9805806546550656,
"lm_q1q2_score": 0.8554069516129288,
"lm_q2_score": 0.8723473663814338,
"openwebmath_perplexity": 275.38193201064223,
"openwebmath_score": 0.6616800427436829,
"ta... |
php, performance, zephir
If you want to reorganize your code you could load the entire file and then work on the data within it.
$packed = file_get_contents("somefile.dat");
$len = strlen($packed);
$offset = 0;
while ( $offset < $len )
{
$a[] = unpack("L",$packed,$offset,4);
$b[] = unpack("f",$packed,$offset+4,4... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "php, performance, zephir",
"url": null
} |
ros-melodic, pointcloud
Originally posted by miura with karma: 1908 on 2020-11-11
This answer was ACCEPTED on the original site
Post score: 1 | {
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"openwebmath_score": null,
"tags": "ros-melodic, pointcloud",
"url": null
} |
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