text stringlengths 1 1.11k | source dict |
|---|---|
Edit: The above is based on my assumption that $$r$$ was a nonnegative integer, which is not necessarily the case. However, there is still an important take away.
Note that if $$c_m$$ is the first non-zero coefficient, then $$x^r\sum_{n=0}^\infty c_nx^n=x^{r+m}\sum_{n=0}^\infty a_nx^n,$$ where $$a_n=c_{m+n}$$ for all $... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9802808724687407,
"lm_q1q2_score": 0.8037257546606275,
"lm_q2_score": 0.8198933359135361,
"openwebmath_perplexity": 184.00159789867158,
"openwebmath_score": 0.9891518354415894,
"ta... |
In this case, I'll prove that these functions do not form a basis:
First of all, let's see exactly what $u_n$ is. We know that for $y\geq 0$, $\sin(y)$ is greater than or equal to zero when $y\in[0,\pi]\cup[2\pi,3\pi]\cup[4\pi,5\pi]\cup\cdots$. If we put $y=2^n\pi x$, we obtain that $\sin(2^n\pi x)$ is greater than or... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9715639653084244,
"lm_q1q2_score": 0.8096281421778713,
"lm_q2_score": 0.8333245891029456,
"openwebmath_perplexity": 146.38265030161486,
"openwebmath_score": 0.9531884789466858,
"ta... |
electromagnetism, electrons, voltage, batteries, electrochemistry
Twice the voltage, due to the summation of voltages with two cells in series (i.e., twice the $E$ field acting on a resistive load through the conductor).
Twice the current with the same load, due to the doubled voltage.
Twice the reaction rate at ... | {
"domain": "physics.stackexchange",
"id": 50826,
"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, electrons, voltage, batteries, electrochemistry",
"url": null
... |
java, javascript, mysql, servlets
// Mark as successful:
jsonResponseObject.succeeded = true;
} catch (CannotCreateMainTableException ex) {
LOGGER.log(
Level.SEVERE,
"Could not create the main table: {0}, caused by: {1}",
ob... | {
"domain": "codereview.stackexchange",
"id": 41934,
"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, javascript, mysql, servlets",
"url": null
} |
food, breathing, olfaction
Title: Does the human body metabolize what it smells, even in trace amounts? I conjectured to a friend that some small amount of anything we smell is likely metabolized by the body. He disagreed. My thinking is that, if you are smelling something, some portion of molecules are being sensed b... | {
"domain": "biology.stackexchange",
"id": 4582,
"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": "food, breathing, olfaction",
"url": null
} |
ros, ros-indigo, uwsim, catkin-workspace
sudo apt-get install ros-indigo-uwsim
roscore
rosrun uwsim uwsim
it will be a great help if someone can figure out what my problem is and help me with this
thank you
Originally posted by yuvaram on ROS Answers with karma: 1 on 2016-02-03
Post score: 0
Hi,
I'm not sure what t... | {
"domain": "robotics.stackexchange",
"id": 23638,
"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, ros-indigo, uwsim, catkin-workspace",
"url": null
} |
quantum-mechanics, quantum-information, quantum-entanglement, density-operator
*modulo mathematical complications in infinite dimensions which require more work, but the assumptions are very strong (the operator is bound, and likely compact) so you get a strong spectral theorem in return. | {
"domain": "physics.stackexchange",
"id": 77282,
"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, quantum-information, quantum-entanglement, density-operator",
... |
c#, functional-programming, linq
Where:
static IEnumerable<string> Make(
IEnumerable<string> projects,
IEnumerable<(string Dependency, string Dependent)> references)
{
var dependents = new HashSet<string>(references.Select(d => d.Dependent));
var build = new HashSet<string>(projects.Except(dependents)... | {
"domain": "codereview.stackexchange",
"id": 35716,
"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#, functional-programming, linq",
"url": null
} |
kinetics
90% or 99% or whatever, as long as it is specified) the reactant to be consumed, then the idea makes sense. In that case it would be more helpful and clear to say $t_{1/2}$ (or $t_{90\%}$ or whatever) instead of just $t$. | {
"domain": "chemistry.stackexchange",
"id": 3851,
"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": "kinetics",
"url": null
} |
navigation, gazebo7, ros-kinetic, frontier-exploration, gmapping
Generate a map by manually moving around
Save the map and serve it
Localise the robot on the map
Provide waypoints to move_base
My question is, what is the order of operations when using cartographer? In my launch file would it just be a cartographer an... | {
"domain": "robotics.stackexchange",
"id": 35016,
"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, gazebo7, ros-kinetic, frontier-exploration, gmapping",
"url": null
... |
c++, graph
AdjencyList adjList;
bool directed = true; // use real bool(s) not int.
};
Design Comments
You are completely ignoring encapsulation. Your functions may work, but because your data is completely exposed, there is no protection from a bad coder coming along and breaking your constraints. Your met... | {
"domain": "codereview.stackexchange",
"id": 24015,
"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++, graph",
"url": null
} |
sorting, comparison, mergesort
Given a sequence of elements simply create $10$ copies of each element and sort the resulting sequence. Then drop the copies from the returned output.
Nothing prohibits you from also using merge() in the second case. It's just that you'd need to perform $\Omega(n)$ merges and the overall... | {
"domain": "cs.stackexchange",
"id": 18775,
"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": "sorting, comparison, mergesort",
"url": null
} |
c++, performance, sieve-of-eratosthenes, memory-optimization
Title: Extending Sieve of Eratosthenes beyond a billion For MAX value of 1000000000 (\$10^9\$), it takes about 45 seconds to reach the line where it prints "done". How can I speed this up?
Is printing to screen always going to take so much time? I know it's ... | {
"domain": "codereview.stackexchange",
"id": 17475,
"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++, performance, sieve-of-eratosthenes, memory-optimization",
"url": null
} |
homework-and-exercises, electrostatics, potential, charge
For the point on the z-axis, this is pretty easy. The differential Voltage from a differential ring of charge with radius $r$ is:
$$dV = \frac{1}{4 \pi \epsilon_o} \frac{dq}{ \mathscr{R}}$$
$$dq = \sigma dA = \sigma 2 \pi r dr$$
$$\mathscr{R} = \sqrt{r^2 + z^2... | {
"domain": "physics.stackexchange",
"id": 5951,
"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, electrostatics, potential, charge",
"url": null
} |
lowpass-filter
Title: Do you recognize this discrete realization of a low pass filter? I have a simple 1st order lag filter implementation that performs well, shown in the block diagram below. This is legacy 'code' we've been using for many years, the original developers have long since moved on. I've been asked to... | {
"domain": "dsp.stackexchange",
"id": 9244,
"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": "lowpass-filter",
"url": null
} |
pytorch, gpu, nvidia, cuda
Title: "model.to('cuda:6')" becomes (nvidia-smi) GPU 4, same with any other "cuda:MY_GPU", only "cuda:0" becomes GPU 0. How do I get rid of this mapping? Strange mapping: example
In the following example, the first column is chosen in the code, second column is the one that does the work ins... | {
"domain": "datascience.stackexchange",
"id": 12119,
"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": "pytorch, gpu, nvidia, cuda",
"url": null
} |
ros, usb, rosandroid, android
Originally posted by Dan Lazewatsky with karma: 9115 on 2015-01-16
This answer was ACCEPTED on the original site
Post score: 1
Original comments
Comment by hat13 on 2015-01-16:
Using android 4.4.4. I'll give this a try and see if it works.
Comment by G212 on 2016-01-27:
Hi!! pleaseee can... | {
"domain": "robotics.stackexchange",
"id": 20592,
"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, usb, rosandroid, android",
"url": null
} |
c, ruby-on-rails
Prefer size_t Over int for Array Indexes
The size_t type is preferable over int for indexing arrays, it is an unsigned type so it can't go negative, it will also be properly sized (either int or long) based on the compiler and operating system to index the largest possible arrays. The size_t type was ... | {
"domain": "codereview.stackexchange",
"id": 44028,
"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, ruby-on-rails",
"url": null
} |
newtonian-mechanics, kinematics, angular-velocity
Title: Is radius always constant in a uniform circular motion Somehow I would like to know whether the radius must be constant in a uniform circular motion. If it is not constant, is the motion called non-uniform circular motion or neither? Yes, the radius is always co... | {
"domain": "physics.stackexchange",
"id": 65198,
"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, kinematics, angular-velocity",
"url": null
} |
optimization, java
I don't need code, I just need to know how to start
Thank you You can solve this with linear programming.
Let's start with the variables. Let $x_d$ denote the number of drivers whose work week starts on day $d$, e.g., $x_\text{Monday}$ denotes the number of drivers who work Monday, Tuesday, Wednesd... | {
"domain": "cs.stackexchange",
"id": 20679,
"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": "optimization, java",
"url": null
} |
• Found this for better explanation of what I mean; Kevin Clinton, September 2004, "A useful production function: Cobb-Douglas". His second paragraph explains what I mean and thus that $MP_1(x_1)$ would give the usage of that input relative to all the usage. This is what I think is intended here. (the pdf is just a cop... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9632305339244013,
"lm_q1q2_score": 0.8026836908875538,
"lm_q2_score": 0.8333245911726382,
"openwebmath_perplexity": 477.41186977016474,
"openwebmath_score": 0.8742650151252747,
"ta... |
is sometimes called absolute! Feed |: Austin Who are you: Student solution: in section! Lesson - funny, too detailed solutions number takes the general form, which satisfies basic i2., complex number in the set of complex numbers in exponential form but this time we are the. As Norm [ z ] s i n in exponential form is t... | {
"domain": "filtrationfauchier.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9763105307684548,
"lm_q1q2_score": 0.8135835759308268,
"lm_q2_score": 0.8333245932423309,
"openwebmath_perplexity": 931.8886215684386,
"openwebmath_score": 0.8587950468063354,
... |
java, tree, junit
Node getLeft() {
return left;
}
Node getRight() {
return right;
}
@Override
public String toString() {
return Integer.toString(key);
}
}
BinarySearchTree
package ru.maksim.nodecountbylevel.api;
public class BinarySearchTree {
private Node root ... | {
"domain": "codereview.stackexchange",
"id": 25698,
"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, tree, junit",
"url": null
} |
ros, wiki
Title: How do keyword searches on www.ros.org work?
Hello ROS Fans,
I am trying to understand the results of keyword searches on the www.ros.org Wiki (not answers.ros.org). For example, if I go to the home page and enter "speech recognition" (without the quotes), the resulting list does not include the gsp... | {
"domain": "robotics.stackexchange",
"id": 10444,
"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, wiki",
"url": null
} |
the-moon, earth, magnetic-field
Title: Does the Moon's magnetic field affect Earth's magnetic field? I wanted to ask a question; it's simple but I cannot find any possible and perfect solution.
Earth has poles, North and South. By which we can get directions using a compass or a needle compass, but that's not the conc... | {
"domain": "astronomy.stackexchange",
"id": 72,
"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": "the-moon, earth, magnetic-field",
"url": null
} |
slam, navigation, ros-groovy
message_filters::NullType, message_filters::NullType>::process (this=0x91b500)
at /opt/ros/groovy/include/message_filters/sync_policies/approximate_time.h:751
#20 0x000000000050a54d in message_filters::sync_policies::ApproximateTime<sensor_msg:Image_<std::allocator<void> >, sensor_msgs... | {
"domain": "robotics.stackexchange",
"id": 13672,
"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": "slam, navigation, ros-groovy",
"url": null
} |
general-relativity, cosmology, universe, earth
Title: Could we be on the inside of a concave hollow universe? Recently I was discussing this theory again (a little drunk, I admit) and then tried to find answers, but couldn't find anything satisfying.
There is a theory (or several theories) that we could be living on t... | {
"domain": "physics.stackexchange",
"id": 24240,
"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, cosmology, universe, earth",
"url": null
} |
thermodynamics, gas-laws, kinetic-theory-of-gases
This is made possible because the liquid and vapor phases share continuous translational symmetry. In contrast, a phase transition from the liquid phase to a solid, crystalline phase requires breaking this continuous symmetry, resulting instead in the discrete translat... | {
"domain": "chemistry.stackexchange",
"id": 10707,
"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, gas-laws, kinetic-theory-of-gases",
"url": null
} |
catkin, ros-groovy
Title: catkin_make error in Groovy
I recently installed groovy and I am trying to configure my installation, I have sourced the setup.bash file however when trying to configure my catkin workspace gives me error. When I try catkin_make inside catkin_ws, I get the following error;
Traceback (most re... | {
"domain": "robotics.stackexchange",
"id": 12248,
"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": "catkin, ros-groovy",
"url": null
} |
His the Heaviside function we nally have ˚(x) = 1 2 Z 0 1 eyj x yjdy= (1 4 e x if x 0 (1 4 x)ex if 0: Question 45: Use the Fourier transform technique to solve the following ODE y00(x) y(x) = f(x) for x2(1 ;+1), with y(1 ) = 0, where fis a function such that jfjis integrable over R. The Laplace transform is also relate... | {
"domain": "lotoblu.it",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9859363741964573,
"lm_q1q2_score": 0.8060764146939288,
"lm_q2_score": 0.8175744761936437,
"openwebmath_perplexity": 487.3528843491706,
"openwebmath_score": 0.8950192332267761,
"tags":... |
catkin, ros-kinetic, ubuntu, rosserial-arduino, rosserial
However, if I try to build the package, I get the following error message:
Errors << helloworld:make /home/mirzam/cmaketut_ws/logs/helloworld/build.make.170.log
make[3]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule.
/home/mirzam/c... | {
"domain": "robotics.stackexchange",
"id": 32093,
"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": "catkin, ros-kinetic, ubuntu, rosserial-arduino, rosserial",
"url": null
} |
javascript, snake-game
<body>
<p id="score">
Score: 0
</p>
<div style="display: -webkit-inline-box">
<canvas id="canvas" width="1050" height="560" ></canvas>
<div>
<div style="text-align: -webkit-center">
<input type="button" id="play" value="play" onClick="game()"/>
<!--<input type="button" id="ma... | {
"domain": "codereview.stackexchange",
"id": 27568,
"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, snake-game",
"url": null
} |
python, algorithm, edit-distance
doc1_words = word_processor(document1)
doc2_words = word_processor(document2)
dot_product = 0
doc1_word_freq = {i: doc1_words.count(i)
for i in doc1_words} # the doc1 vector
doc2_word_freq = {i: doc2_words.count(i)
for i in doc2_words} # the doc2 vec... | {
"domain": "codereview.stackexchange",
"id": 35732,
"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, edit-distance",
"url": null
} |
kinematics, inverse-kinematics, forward-kinematics, dh-parameters
1 & 0& 0 & 10 \\
0 & 1 & 0 & 20 \\
0 & 0 & 1 & 30 \\
0 & 0 & 0 & 1\\
\end{bmatrix}$$
This matrix can be used to calculate the coordinates of a point given in the end effector frame in the base frame.
E.g. the point (X = 1, Y = 1, Z = 1) in defined in t... | {
"domain": "robotics.stackexchange",
"id": 2173,
"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": "kinematics, inverse-kinematics, forward-kinematics, dh-parameters",
"url": null
... |
java, game, homework
@Override
public int getTotalScore() {
return Arrays.stream(scoringArray).mapToInt(ScoreCategory::getScore).sum() - scoringArray[6].getScore();
}
@Override
public ScoreCategory getScoringCategory(int index) {
return scoringArray[index];
}
@Override
pub... | {
"domain": "codereview.stackexchange",
"id": 43031,
"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, game, homework",
"url": null
} |
rosinstall, macos-snowleopard, osx
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py", line 462, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command 'source /Users/john_muccigrosso/ros/setup.sh && rosmake ros ros_comm --rosdep-install... | {
"domain": "robotics.stackexchange",
"id": 5179,
"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": "rosinstall, macos-snowleopard, osx",
"url": null
} |
r, statistics, correlation
Title: How to get correlation between two categorical variable and a categorical variable and continuous variable? I am building a regression model and I need to calculate the below to check for correlations
Correlation between 2 Multi level categorical variables
Correlation between a Multi... | {
"domain": "datascience.stackexchange",
"id": 85,
"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": "r, statistics, correlation",
"url": null
} |
resource-recommendations, faq
Topological field theory: Reading list in topological QFT
Nonperturbative: Books on non-perturbative phenomena in quantum field theory
Curved spacetime: Suggested reading for quantum field theory in curved spacetime
Curved spacetime (advanced): Modern treatment of effective QFT in curved ... | {
"domain": "physics.stackexchange",
"id": 1263,
"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": "resource-recommendations, faq",
"url": null
} |
sql, sql-server
<OutputList>
<ColumnReference Column="Expr1065" />
<ColumnReference Database="[Epicor905]" Schema="[dbo]" Table="[PartMtl]" Alias="[i]" Column="Company" />
<ColumnReference Database="[Epicor905]" Schema="[dbo]" Table="[PartMtl]" Al... | {
"domain": "codereview.stackexchange",
"id": 31682,
"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": "sql, sql-server",
"url": null
} |
javascript, html, game, dom
} else {
bloodCollected = 1*engine.multiplier;
engine.player.bloodcount += bloodCollected;
engine.elements.alterHTML("blood",engine.player.bloodcount);
engine.elements.eventMsg("Your hunt yielded "+bloodCollected+" pint(s) of blood!");
... | {
"domain": "codereview.stackexchange",
"id": 5106,
"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, html, game, dom",
"url": null
} |
If the mass is unchanged by the action, then $F=\text{mass} \ \times \ \text{acceleration}=ma$, so mass enters into the reaction force. You can obtain the same force with different masses: if the mass is doubled, only 1/2 the acceleration is required, but if the mass is halved, you must double the acceleration.
By inc... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9702399051935107,
"lm_q1q2_score": 0.8126923197119778,
"lm_q2_score": 0.8376199694135332,
"openwebmath_perplexity": 342.5923598179115,
"openwebmath_score": 0.6313432455062866,
"tag... |
newtonian-mechanics, newtonian-gravity, rotational-dynamics, planets
The hydrostatic assumption, which is used to describe planets in the Newtonian sense, predicts that materials will stratify according to density. If this is taken as gospel, then we have contours of constant pressure that lie on a material boundary.... | {
"domain": "physics.stackexchange",
"id": 14813,
"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, newtonian-gravity, rotational-dynamics, planets",
"url": nu... |
So as you see the convergence of a series is related to the convergence of a sequence. The probabilities it generates form a geometric sequence, hence its name. Sum of Arithmetic Sequence first value in sequence 2 common deference 2 K number of items in the sequence 10 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, Sum of Sequenc... | {
"domain": "cyyy.pw",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9888419690807408,
"lm_q1q2_score": 0.8130151166279522,
"lm_q2_score": 0.8221891283434876,
"openwebmath_perplexity": 321.94499997571376,
"openwebmath_score": 0.8289718627929688,
"tags": null,... |
extraction, nitro-compounds
Title: Would Schweizer's reagent dissolve nitrocellulose? Schweizer's reagent, or tetraamminediaquacopper dihydroxide, is used in the production of rayon. It does this by dissolving the cellulose which can be acidified to form strands of cellulose. I have had some success with this.
So, see... | {
"domain": "chemistry.stackexchange",
"id": 5921,
"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": "extraction, nitro-compounds",
"url": null
} |
reductions, np, satisfiability, bipartite-matching, 3-sat
Title: How to convert Bipartite Perfect Matching to SAT? SAT is $NP$-complete while Bipartite Perfect Matching is in NC under derandomization assumptions. How to convert Bipartite Perfect Matching from balanced bipartites to SAT without Cook-Levin? Since 3-SAT ... | {
"domain": "cs.stackexchange",
"id": 18905,
"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": "reductions, np, satisfiability, bipartite-matching, 3-sat",
"url": null
} |
quantum-algorithms, complexity-theory
One way of seeing why these classes can't be practically solved using this probabilistic description, is that it may take exponentially many repeats to be confident of a probability estimate for Pr[ α = 1 | x ] because of the tininess of the differences in the probabilities involv... | {
"domain": "quantumcomputing.stackexchange",
"id": 140,
"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-algorithms, complexity-theory",
"url": null
} |
python, python-3.x
def askAmount():
amount = input("Amount?")
while int(amount) <= 0 and amount.isnum():
amount = int(
input("Sorry, please enter an integer value greater than 0."))
return int(amount)
if (cclen == ... | {
"domain": "codereview.stackexchange",
"id": 25694,
"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, python-3.x",
"url": null
} |
special-relativity, field-theory, inertial-frames, dirac-equation, spinors
$$S(\Lambda) = 1 - \frac{i}{4}\sigma_{\mu \nu} \omega^{\mu \nu} \hspace{1mm} , \hspace{1mm} S(\Lambda^{-1}) = 1 + \frac{i}{4}\sigma_{\mu \nu} \omega^{\mu \nu} $$
I am somewhat perplexed by the $\frac{i}{4}$ factors, but I figure that they're a ... | {
"domain": "physics.stackexchange",
"id": 86055,
"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": "special-relativity, field-theory, inertial-frames, dirac-equation, spinors",
"ur... |
php, laravel
// Settings routes
Route::group(['prefix' => 'settings', 'middleware' => ['checkUserPermissions:edit-settings']], function() {
Route::get('/', [SettingsController::class, 'index'])->name('dashboard.settings');
Route::post('/update', [SettingsController::class, 'update'])->name('dashboard... | {
"domain": "codereview.stackexchange",
"id": 44325,
"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, laravel",
"url": null
} |
special-relativity, reference-frames, acceleration, estimation, rocket-science
And you said you want a speed of $v=0.99993\cdot c$.
Now you can calculate the relativistic kinetic energy of it:
$$\begin{align}
E_{\text k} &= \frac{mc^2}{\sqrt{1-v^2/c^2}} - mc^2 \\
&= \left(\frac{1}{\sqrt{1-v^2/c^2}}-1\right) mc^2 \... | {
"domain": "physics.stackexchange",
"id": 58391,
"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": "special-relativity, reference-frames, acceleration, estimation, rocket-science",
... |
java, strings, programming-challenge, sorting
Now, about bending the rules on the input side.....
Many programming challenges are set up to work in many languages, including things like C, C++, etc. Some of those languages need to have an idea of how much space to allocate before processing the data. That's why the de... | {
"domain": "codereview.stackexchange",
"id": 10076,
"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, strings, programming-challenge, sorting",
"url": null
} |
general-relativity, gravity, black-holes, speed-of-light
The effect that the time seems to stop when something reaches the event horizon is linked to this effect of the photon not being able to escape the potential well around the black hole. If the light is regarded as a wave traveling away from the black hole, it is... | {
"domain": "physics.stackexchange",
"id": 40440,
"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, gravity, black-holes, speed-of-light",
"url": null
} |
microbiology, epidemiology, infection, pathogenesis
One (but is complete speculative) possibility is on the toxin itself. It could be possible, that some people are more sensitive to the diphtheria toxin, so that the amounts necessary for the negative effects are too small to trigger an adequate immune response. This ... | {
"domain": "biology.stackexchange",
"id": 1972,
"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, epidemiology, infection, pathogenesis",
"url": null
} |
ros, opengl, rosbuild
Title: Building an executable with OpenGL
I have a C++ program which requires glut and OpenGL to run.
If I was compiling without ROS, I would add the compiler flags -lGL and -lGLU. However when using rosmake and CMakeLists I obviously can't.
How can I make rosmake link to external system librari... | {
"domain": "robotics.stackexchange",
"id": 6757,
"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, opengl, rosbuild",
"url": null
} |
robustness and fast convergence. , scheduling of set of power plants in order to meet a cu. This causes a problem as the size of the matrices no longer follow the. In this paper, we present a thick restart Lanczos bidiagonalization procedure imple-. The library provides linear algebra operations which operate directly ... | {
"domain": "cesenaticoopen.it",
"id": null,
"lm_label": "1. Yes\n2. Yes\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9848109485172559,
"lm_q1q2_score": 0.8227933346453876,
"lm_q2_score": 0.8354835371034368,
"openwebmath_perplexity": 1043.0111490718846,
"openwebmath_score": 0.6158665418624878,
... |
javascript, object-oriented, interview-questions
return true
}
*getTicketBySeverity() {
for (const queue of this.queues) {
for (const ticket of queue) {
yield ticket
}
}
}
getTicketAtHighestSeverity() {
for (const queue of this.queues) {
for (const ticket of queue) {
... | {
"domain": "codereview.stackexchange",
"id": 40460,
"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, object-oriented, interview-questions",
"url": null
} |
evolution, natural-selection
The simple answer is because either there wasn't enough selective pressure that the rest of the shark phenotypes succumbed to that the hammerhead avoided, or that the hammerhead design doesn't give enough of an advantage to completely dominate the gene pool. An alternate, but more abstract... | {
"domain": "biology.stackexchange",
"id": 2489,
"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, natural-selection",
"url": null
} |
classical-mechanics, energy, definition
P.P.P.S And also please don't tell me "Energy is another form of mass". I assume we are talking about non-relativistic Newtonian mechanics and also don't forget the concept of energy has been used long before appearance of "Relativity theory". | {
"domain": "physics.stackexchange",
"id": 34766,
"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, energy, definition",
"url": null
} |
water, surface-tension, capillary-action, porous-media
Title: Ability of some porous solids to tentatively sit on water for a while before sinking How does a porous solid such as the cereal "Wheatena" manage to tentatively sit on water for a while before sinking? I assume it initially somehow evades capillary action, ... | {
"domain": "physics.stackexchange",
"id": 86474,
"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": "water, surface-tension, capillary-action, porous-media",
"url": null
} |
ros, urdf, sdf
<collision>
<geometry>
<cylinder length="0.032" radius="0.0095"/>
</geometry>
<origin rpy="1.57079 0 0" xyz="-0.00015 0 0"/>
</collision>
</link>
<!--joint between link4 and link5-->
<joint name="link4_to... | {
"domain": "robotics.stackexchange",
"id": 16329,
"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, urdf, sdf",
"url": null
} |
Then we find a way of writing $3$ as a linear combination of $147$ and $258$, using the Euclidean algorithm computation above, and the equalities on the far right. We have: \begin{align*} 3 &= 111 - 3(36)\\ &= 111 - 3(147 - 111) = 4(111) - 3(147)\\ &= 4(258 - 147) - 3(147)\\ &= 4(258) -7(147). \end{align*} Then, we tak... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9811668695588648,
"lm_q1q2_score": 0.8397327960894309,
"lm_q2_score": 0.8558511524823265,
"openwebmath_perplexity": 447.78264724190035,
"openwebmath_score": 0.9817954897880554,
"ta... |
entanglement, information-theory, communication
Title: If Alice and Bob share only classical communication resources, is shared entanglement always equivalent to shared randomness? If Alice and Bob share only classical communication resources such as noisy or perfect classical channels, is shared entanglement always e... | {
"domain": "quantumcomputing.stackexchange",
"id": 2343,
"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, information-theory, communication",
"url": null
} |
0, complex... Or i-j numbers include imaginary numbers, and is called the real number line ( non-made-up ) things, real. Input array scalar | vector | matrix | multidimensional array ) as a - bj Find absolute... Are neither in something that ’ s start at the point ( a, b = 0 a complex is!, Every real number is an inter... | {
"domain": "livelovelocks.com",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.980875959894864,
"lm_q1q2_score": 0.8432235117582123,
"lm_q2_score": 0.8596637559030338,
"openwebmath_perplexity": 372.6209636920144,
"openwebmath_score": 0.7746782302856445,
"tags... |
# Mass and center of mass of solid
Let $S$ be the part of the solid $z = 4 - x^2 - y^2$ where $z$ $\geq 3$, and let $T$ be the solid enclosed by $S$ and the plane $z = 3$. Assume $T$ has constant density equal to $1$. Calculate the mass and the coordinates of the center of mass of $T$.
So to find the mass I solved $$... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9416541528387691,
"lm_q1q2_score": 0.8147418406772237,
"lm_q2_score": 0.8652240721511739,
"openwebmath_perplexity": 201.91313444591412,
"openwebmath_score": 0.8854843974113464,
"ta... |
python, strings
def insert_invalid(text_without_invalid: str, insert_chars: list[tuple[int, chr]]) -> str:
text_list: list[str] = list(text_without_invalid)
for position, char in insert_chars:
text_list.insert(position, char)
return "".join(text_list)
def encode(encode_string: str, code_str: str =... | {
"domain": "codereview.stackexchange",
"id": 45352,
"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, strings",
"url": null
} |
homework-and-exercises, newtonian-mechanics, geometry
Title: A teaser on center of mass of right circular cone? How can a distinction be made between the centre of mass of a right circular cone
As a uniform solid ($\frac{h}{4}$ from base, where is $h$ is height)
and
That composed of infinitesimally small thickness ... | {
"domain": "physics.stackexchange",
"id": 25570,
"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, geometry",
"url": null
} |
We observe a $90^{\circ}$ phase difference between the real and imaginary part, just like expected.
Using only built-in Python functions for reading from and writing to files can be tedious. NumPy has functions designed specifically for reading and writing structured data, np.loadtxt and np.savetxt. The functions are ... | {
"domain": "jupyter.org",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9848109485172559,
"lm_q1q2_score": 0.8466062664639717,
"lm_q2_score": 0.8596637433190939,
"openwebmath_perplexity": 1356.4796297145695,
"openwebmath_score": 0.44402772188186646,
"tags": ... |
machine-learning, feature-selection, feature-extraction, feature-engineering, machine-learning-model
Since you are trying to classify incoming emails, I assume you have access to the mail subject and the mail body. In this case, I would recommend starting with a simple Naive Bayes algorithm, since it is easy to use, e... | {
"domain": "datascience.stackexchange",
"id": 4553,
"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, feature-selection, feature-extraction, feature-engineering, m... |
catkin, ros-hydro, ubuntu, ubuntu-precise, linking
Title: How to utilize libserial with ROS -Ubuntu 12.04 - Hydro
I have an old ROS Fuerte project which code i wanted to reuse in an another ROS Hydro node, this code uses libserial library.
I have a problem to find out the correct way to include this library into my n... | {
"domain": "robotics.stackexchange",
"id": 16932,
"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": "catkin, ros-hydro, ubuntu, ubuntu-precise, linking",
"url": null
} |
php, laravel, rest
Title: Laravel token middleware I want to make my API unavailable to every client who doesn't have the token to access. This means the Android app will send a client as Android and token as token string in the header with keys client and token.
Now in middleware, I am checking it with my table field... | {
"domain": "codereview.stackexchange",
"id": 30499,
"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, laravel, rest",
"url": null
} |
regular-languages, finite-automata, regular-expressions, pumping-lemma
Indeed any string of length $5$ or more must have a repeatable part as defined above.
The two shortest strings in the language are $0$ and $000$. We see that $0$ clearly cannot be pumped (as $\varepsilon$ is not in the language) but $000$ can be pu... | {
"domain": "cs.stackexchange",
"id": 17001,
"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": "regular-languages, finite-automata, regular-expressions, pumping-lemma",
"url": null
... |
objective-c, ios, cocoa
My second big problem with these files is that the method names don't say "random" in them--they should. The name of the file or class isn't enough. Consider NSArray or NSString, for example. Look at all their methods. If you're using an NSArray, you know you're dealing with an NSArray, but... | {
"domain": "codereview.stackexchange",
"id": 6936,
"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": "objective-c, ios, cocoa",
"url": null
} |
If $$p\neq q$$, $$\frac{n}{p}>\frac{n+1}{q}\iff p. Which of $$p$$ and $$q$$ is larger will be effectively "random", in that the behavior will jump around a lot and one will be larger than the other with a limiting ratio of $$0.5$$. (A formal proof might prove difficult, but you can certainly gather some numerical evide... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9817357189762611,
"lm_q1q2_score": 0.8564145901091501,
"lm_q2_score": 0.8723473879530492,
"openwebmath_perplexity": 237.79102174026804,
"openwebmath_score": 0.9285973310470581,
"ta... |
haskell, unit-testing, game-of-life
In Haskell, foldl is usually less efficient than foldr due to laziness. (In some cases you want to use the strict version foldl', but almost never foldl.)
foldr p [] someList
p n a = f n : a
And this is completely equivalent to:
map p someList
p n = f n
Another example: Using a tu... | {
"domain": "codereview.stackexchange",
"id": 12235,
"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": "haskell, unit-testing, game-of-life",
"url": null
} |
java, interview-questions, javafx
try {
Anagram anagram = new Anagram();
List<List<String>> anagramGroupList = anagram.findAnagrams(selectedFile.getAbsolutePath());
// Retrieves anagram groups from list
for (List<String> anagramList : anagramGroupList)... | {
"domain": "codereview.stackexchange",
"id": 24057,
"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, interview-questions, javafx",
"url": null
} |
(contd), After that, we insert this estimate into the actual formula of the expectation operator involving the weighted integral of the PDF, and now this time around, each observation gets weighted by the value of that observation itself... (via sifting). So I get that. What I do not get is 'where' is the frequency/pop... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9773707960121133,
"lm_q1q2_score": 0.8123349422852171,
"lm_q2_score": 0.8311430478583168,
"openwebmath_perplexity": 362.792973147684,
"openwebmath_score": 0.9379124641418457,
"tags... |
general-relativity, differential-geometry, geometry
Keeping things as they are (torsion-free) also gives a nicer "aesthetic" to the theory in the following concrete sense:
The length functional along a smooth curve $c:(a,b)\rightarrow M$ in a pseudo-Riemannian manifold $(M, g)$, with $g$ being the metric, is given in ... | {
"domain": "physics.stackexchange",
"id": 65828,
"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, differential-geometry, geometry",
"url": null
} |
java, logging
/**
* @return the currently in use {@link Utilities.AppTester.Rank}
*/
public static Rank getMyDebugLevel() {
return myRank_;
}
/**
* @param level all messages that are at this debug level or higher are
* printed. Messages that are below (less important than) this... | {
"domain": "codereview.stackexchange",
"id": 14932,
"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, logging",
"url": null
} |
quantum-field-theory, lagrangian-formalism, hamiltonian-formalism, path-integral, coherent-states
I have not seen some lecture notes starting from the quantum Hamiltonian present in $S_E^1$, of a usual bosonic condensed matter system in second quantized form for example, and arriving at the usual terms of $S_E^2$. Thi... | {
"domain": "physics.stackexchange",
"id": 86092,
"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, lagrangian-formalism, hamiltonian-formalism, path-integral, ... |
everyday-life, weak-interaction, electroweak
Title: Would life (as we know it) be possible without the weak interaction? I understand why the strong interaction is important in everyday life (it holds nuclei together and also allows the fusion reactions that power the Sun) and also why the electromagnetic interaction ... | {
"domain": "physics.stackexchange",
"id": 31370,
"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": "everyday-life, weak-interaction, electroweak",
"url": null
} |
c#
There are many ways you can use it then. Some examples:
var password1 = PasswordGenerator.GetRandomPassword();
var password2 = PasswordGenerator.GetRandomPassword(8, PasswordGenerator.LowerAlpha + PasswordGenerator.Digits);
If you want to generate a large number of them, and you don't mind spending the memory on ... | {
"domain": "codereview.stackexchange",
"id": 41317,
"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#",
"url": null
} |
to compute the derivative of a function. at a Regular Point of a Surface. These values are often called extreme values or extrema (plural form). Extreme Value Theorem. The #1 tool for creating Demonstrations and anything technical. To find the relative extrema of a function, you first need to calculate the critical val... | {
"domain": "zafarindustries.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9852713878802045,
"lm_q1q2_score": 0.8374522742816736,
"lm_q2_score": 0.8499711699569786,
"openwebmath_perplexity": 221.00805278696637,
"openwebmath_score": 0.8135552406311035,... |
fft, frequency-spectrum, power-spectral-density, spectrogram
Regarding the problem of measuring higher frequency waves in ducts, consider that according to Eriksson, it may be assumed that waves in a circular duct propagate in a planar fashion (i.e., pressure is constant in every cross-sectional area of the duct) only... | {
"domain": "dsp.stackexchange",
"id": 3582,
"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": "fft, frequency-spectrum, power-spectral-density, spectrogram",
"url": null
} |
odometry, sensor-fusion, diff-drive-controller, ros2-control, ros2-controllers
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1e-9, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0... | {
"domain": "robotics.stackexchange",
"id": 38523,
"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": "odometry, sensor-fusion, diff-drive-controller, ros2-control, ros2-controllers",
... |
optimization, ruby, classes, modules
# Ensure the plugin file exists
if File.file? full_path
# Load the plugin file and ensure the class exists
require full_path
unless eval("defined? #{class_name}")
@logger.error "Class \"#{class_name}\"... | {
"domain": "codereview.stackexchange",
"id": 5670,
"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": "optimization, ruby, classes, modules",
"url": null
} |
c++, beginner, collatz-sequence
Similarly, you can shorten isValid().
Don't mix logic and writing to cout in calculate()
Currently calculate() is not very reusable since it writes to cout. What if you wanted to write to a different stream, or if you just wanted to calculate the next term in the sequence without writin... | {
"domain": "codereview.stackexchange",
"id": 27403,
"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, collatz-sequence",
"url": null
} |
sines and cosines: f(x) = a 0 2 + X1 n=1 a ncos(nˇx p) + X1 n=1 b nsin(nˇx p) (2.1) where a 0, a n, and b periodic signal. x ∈ [ … Examples where usingeiθmakes things simpler: UsingeiθUsingcosθandsinθ ei(θ+φ)=eiθeiφcos(θ +φ)=cosθcosφ− sinθsinφ eiθeiφ=ei(θ+φ)cosθcosφ =1 2cos(θ +φ)+1 2cos(θ −φ) d dθe. Assume that we have... | {
"domain": "com.br",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9777138190064204,
"lm_q1q2_score": 0.8060878144460252,
"lm_q2_score": 0.8244619220634456,
"openwebmath_perplexity": 523.1403203822268,
"openwebmath_score": 0.9633017182350159,
"tags": nul... |
$\displaystyle Z := \begin{pmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ -\alpha & 0 & 0 \end{pmatrix}$
with the Lie bracket given by
$\displaystyle [Y,X] = -Y; [Z,X] = -\alpha Z; [Y,Z] = 0.$
As such, we see that if we use the basis ${X, Y, Z}$ to identify ${{\mathfrak g}}$ to ${{\bf R}^3}$, then adjoint representation of ${G}... | {
"domain": "wordpress.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9896718459575752,
"lm_q1q2_score": 0.8114253577749696,
"lm_q2_score": 0.8198933425148213,
"openwebmath_perplexity": 143.85039791894428,
"openwebmath_score": 0.9072800874710083,
"tags":... |
c++, c++11
Don't test; just sort
The code currently contains these lines:
//If entered arrival time are not sorted
if (! (std::is_sorted(arrivalTime.begin(), arrivalTime.end())) )
{
sortAccordingArrivalTime();
} | {
"domain": "codereview.stackexchange",
"id": 31072,
"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++11",
"url": null
} |
as the $E_{0,11}(X)$ was found in part 2. For $a=16$ I get $14.69\bar{6}$. Then solving $E_{16,0}(X|B=b) > E_{16,0}(X)$ produces $b < 12.8776$ so we adjust to re-roll on $12$ or less. Now go back and do the first step again, but with $b=12$ instead of $b=11$ and see that the answer is still less than $17$. | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.97594644290792,
"lm_q1q2_score": 0.802412559456516,
"lm_q2_score": 0.8221891327004132,
"openwebmath_perplexity": 331.97788022105465,
"openwebmath_score": 0.9270123243331909,
"tags"... |
energy, reference-frames, classical-mechanics
As far as I can see you are implicitly supposing the following three equalities to hold
$$E_i+A=E_f\\p_i=p_f\\m_i=m_f$$
where subscripts $i$ and $f$ stays for the initial (before acceleration) for the final (after acceleration) states respectively and $A$ is the energy sto... | {
"domain": "physics.stackexchange",
"id": 16425,
"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": "energy, reference-frames, classical-mechanics",
"url": null
} |
March 4th, 2018, 02:28 PM #2 Senior Member Joined: Sep 2015 From: USA Posts: 2,458 Thanks: 1340 I would do this as $8w \cdot 9day \cdot 6\dfrac{hr}{day} = 30gal$ $232w\cdot hr = 30gal$ $1gal = \dfrac{232}{30}w\cdot hr$ in other words it takes $\dfrac{232}{30}$ worker hours to process a gallon of milk Given this we ... | {
"domain": "mymathforum.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9783846628255124,
"lm_q1q2_score": 0.8131776126847168,
"lm_q2_score": 0.8311430499496096,
"openwebmath_perplexity": 1815.9104345543938,
"openwebmath_score": 0.6035517454147339,
"... |
quantum-chemistry, molecular-orbital-theory
Title: Origin of Virtual Molecular Orbitals in Hartree-Fock equations Let's look at scheme
Do I understand correctly, the origin of Virtual Orbitals is a solution of (for, exampre, restricted) HF equation eigenfuncions? Yes, they result from the HF equations just like the o... | {
"domain": "chemistry.stackexchange",
"id": 16540,
"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-chemistry, molecular-orbital-theory",
"url": null
} |
ros-indigo, qt
Title: Using Qt Libraries with ROS Indigo CMake Error
I'm trying to incorporate an existing Qt GUI into a ROS node. I'm initially just trying to get the CMakeLists.txt to build successfully in QtCreator 2.7.2. I keep getting an error that:
CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.... | {
"domain": "robotics.stackexchange",
"id": 22056,
"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-indigo, qt",
"url": null
} |
c#
I haven't done much with bit shifting, and while I understand it conceptually, I have no practical experience. I was using shifting code like inEnum >> positions | inEnum << ~positions << 1, which worked great unless it had to roll back (going beyond the maximum value and moving a bit back to the beginning, or vic... | {
"domain": "codereview.stackexchange",
"id": 36488,
"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#",
"url": null
} |
quantum-field-theory, momentum, definition
Title: Definition of conjugate momentum in QFT My lecture notes define the conjugate momentum of a scalar field via:
$$\pi = \dot{\psi}$$
Where
$$\psi = \int \frac{d^3p}{(2\pi)^{3}}\frac{1}{\sqrt{2E_p}}\left(a_p e^{i\vec{p}\cdot \vec x} + a_p^\dagger e^{-i\vec p \cdot \vec x}... | {
"domain": "physics.stackexchange",
"id": 40633,
"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, momentum, definition",
"url": null
} |
nlp, sentiment-analysis
Title: prepare email text for nlp (sentiment analysis) I have text of emails, which also contains disclaimers, phone numbers, email addresses, file attachment names, addresses, greetings etc.
At the moment I blindly pass this text through an OOTB sentiment analyser called Vader with poor resul... | {
"domain": "datascience.stackexchange",
"id": 4538,
"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": "nlp, sentiment-analysis",
"url": null
} |
rna, mutations, mrna
Title: Mutation in pre-mRNA sequence Has there any mutations been recorded which cause harmful effects due to change in the part of pre-mRNA responsible for proper m-RNA splicing ? Yes, you can find mutations in the genomic DNA which affect splice acceptor sites. Wikipedia lists the following outc... | {
"domain": "biology.stackexchange",
"id": 1611,
"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": "rna, mutations, mrna",
"url": null
} |
c++, reinventing-the-wheel, memory-management
bool verify_unsorted() const {
auto chunk = unsorted_bin_;
while (chunk) {
assert(verify_size(chunk) >= chunk_alignment_ &&
(realsize(chunk) % chunk_alignment_) == 0);
assert(get_flags(chunk) == CHUNK_UNSORTED);
... | {
"domain": "codereview.stackexchange",
"id": 43569,
"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++, reinventing-the-wheel, memory-management",
"url": null
} |
java, swing, audio
@Override
public void mouseReleased(MouseEvent e) {
originallyPressedCheckBox = null;
lastEnteredCheckBox = null;
isMousePressed = false;
}
@Override
public void mouseEntered(MouseEvent e) {
if (isMousePressed) {
... | {
"domain": "codereview.stackexchange",
"id": 44996,
"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, swing, audio",
"url": null
} |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.