text stringlengths 1 1.11k | source dict |
|---|---|
ros, ros-melodic
^never mind, it worked. thank you.
Comment by ljaniec on 2022-05-16:
Relevant issue with similar problem: https://github.com/husky/husky/issues/155
Comment by ljaniec on 2022-05-16:
If it worked, please accept the answer so it will be marked in the questions queue :) | {
"domain": "robotics.stackexchange",
"id": 37671,
"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-melodic",
"url": null
} |
mechanical-engineering
Sorry for being cryptic, I am working on a prototype for something and my partner in crime is paranoid that their idea will be stolen. If you have any queries relevant to finding an answer I'll be happy to answer them.
edit: There will be two carriages on the LGR, each with their own CME, differ... | {
"domain": "engineering.stackexchange",
"id": 3707,
"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": "mechanical-engineering",
"url": null
} |
snakemake
Title: combining the use of workdir and option --jobscript in snakemake It seems that in snakemake the script specified after the --jobscript cannot be used properly if a workdir: is specified in the snakefile.
The path of the script specified becomes relative to the workdir defined in the snakefile instead... | {
"domain": "bioinformatics.stackexchange",
"id": 289,
"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": "snakemake",
"url": null
} |
fft, frequency-spectrum, noise
Recall the filterbank interpretation of the DFT:
$$
X[k] = \sum_{n=0}^{N-1} x[n] e^{\frac{-j2\pi k n}{N}}
$$
In this view of the transform, the DFT implements a uniformly-spaced bank $N$ of critically-sampled filters. The frequency response of each filter in normalized frequency $\omega$... | {
"domain": "dsp.stackexchange",
"id": 1499,
"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, noise",
"url": null
} |
newtonian-mechanics, classical-mechanics, lagrangian-formalism, reference-frames, centrifugal-force
Title: How can you solve this "paradox"? Central potential A mass of point performs an effectively 1-dimensional motion in the radial coordinate. If we use the conservation of angular momentum, the centrifugal potential... | {
"domain": "physics.stackexchange",
"id": 10169,
"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, classical-mechanics, lagrangian-formalism, reference-frames, ... |
star, mass, hr-diagram
Taking into account the above information, RV Tauri stars are BOTH more luminous and hotter at the surface than red giants (and AGB/RC stars), they should appear to the upper-left of the latter of the aforementioned groups (given the inversion of the temperature axis). All seemed well.
But then ... | {
"domain": "astronomy.stackexchange",
"id": 763,
"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": "star, mass, hr-diagram",
"url": null
} |
# Definition of uniform structure
From Wikipedia:
A uniform space $(X, Φ)$is a set $X$ equipped with a nonempty family $Φ$ of subsets of the Cartesian product $X × X$ ($Φ$ is called the uniform structure or uniformity of $X$ and its elements entourages) that satisfies the following axioms:
1. if $U$ is in $Φ$, then ... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9678992932829917,
"lm_q1q2_score": 0.8023292928845805,
"lm_q2_score": 0.8289388146603365,
"openwebmath_perplexity": 212.57669621472849,
"openwebmath_score": 0.9201459884643555,
"ta... |
First look at $D'_a$ and $D'_b$. $D'_a$ has a $\frac2{k=2}$ chance of rolling $m+3$ and winning over any $D'_b$ roll. $D'_a$ can also win half the time when both dice roll numbers appearing on their old versions, which occurs with probability $\frac{k^2}{(k+2)^2}$. \begin{align} p'(a,b) & = \frac{k^2}{(k+2)^2} p(a,b) +... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9861513869353992,
"lm_q1q2_score": 0.8085389590300468,
"lm_q2_score": 0.8198933447152497,
"openwebmath_perplexity": 378.5845929103986,
"openwebmath_score": 0.9812066555023193,
"tag... |
• Little nittpick: This is actually not enough to show that this is a subspace. You also need to show that it is non-empty (which is clear here, but still). The empty set is closed und both addition and scalar mutliplication, but is not a subspace since ot does not have a neutral element gor the addition. That is the r... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9830850852465429,
"lm_q1q2_score": 0.8082818778927955,
"lm_q2_score": 0.8221891370573388,
"openwebmath_perplexity": 170.46209185549117,
"openwebmath_score": 0.7425025701522827,
"ta... |
python, python-3.x, web-scraping, selenium, instagram
if __name__ == '__main__':
main()
Changes :
1) Constants
2) Fixing nested dictionary in function check_availability
3) Create Static Function get_fields
Usage: myfile.py -U myemail@hotmail.com -P mypassword -F Mynamefile -T stackoverjoke
My previous comparati... | {
"domain": "codereview.stackexchange",
"id": 40433,
"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, web-scraping, selenium, instagram",
"url": null
} |
Some mathematicians do discuss the question of the truth of axioms. It is my impression that many mathematical Platonists are concerned with whether their axioms are true. Those of us who reject Platonism — and that includes me — are less likely to be concerned about the truth of axioms.
I once asked a Platonist what ... | {
"domain": "wordpress.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9891815529417711,
"lm_q1q2_score": 0.8264449087673167,
"lm_q2_score": 0.8354835432479663,
"openwebmath_perplexity": 435.7464052874122,
"openwebmath_score": 0.6393908858299255,
"tags": ... |
homework-and-exercises, continuum-mechanics
Title: Surface integral Vs Volume Integral Can I rewrite the continuity equation like this ? :
$$
\iiint\limits_{V}\dfrac{\partial\rho}{\partial t}\mathrm dV +\iiint\limits_{V}\rho\boldsymbol{\nabla\cdot}\mathbf v\,\mathrm dV + \iiint\limits_{V}\mathbf v\boldsymbol{\cdot\nab... | {
"domain": "physics.stackexchange",
"id": 99651,
"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, continuum-mechanics",
"url": null
} |
newtonian-mechanics, acceleration, collision, elasticity, jerk
There are times where reframing the problem will not be so helpful. Consider the same problem, but now the person is standing against a wall. You can still reframe the problem in the perspective of the cube, but now you have to deal with the pesky questi... | {
"domain": "physics.stackexchange",
"id": 99926,
"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, acceleration, collision, elasticity, jerk",
"url": null
} |
organic-chemistry, physical-chemistry, extraction
nature of the extracted substance and the extractant (not a variable in your example);
temperature;
presence of electrolytes in aqueous solutions;
$\mathrm{pH}$ of the medium;
rate of agitation etc. | {
"domain": "chemistry.stackexchange",
"id": 8560,
"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": "organic-chemistry, physical-chemistry, extraction",
"url": null
} |
logic
What or who is the text referring to? Why would defining "consistent renaming" be hard, which logicians have made errors trying to define this, and what were those errors? This is a partial answer: I have no idea about which errors or people SICP is referring to. I can only provide some hints about "why" variabl... | {
"domain": "cs.stackexchange",
"id": 12185,
"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": "logic",
"url": null
} |
textbook-and-exercises, density-matrix
To summarize, a measurement by $\rho$ on the state $\lvert\psi\rangle$ can tell us intermediate information about the common-ness (in the statistical mixture represented by $\rho$) of the state we will find it to occupy after measuring completely with respect to $\{\lvert u_i\ran... | {
"domain": "quantumcomputing.stackexchange",
"id": 4656,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "textbook-and-exercises, density-matrix",
"url": null
} |
filter-design, finite-impulse-response, infinite-impulse-response, digital-filters
First of all, when DSP engineers talk about IIR filters, they usually mean implementable (i.e., stable and causal) filters, which - apart from quantization effects - can be implemented exactly. In that sense, an ideal lowpass filter is ... | {
"domain": "dsp.stackexchange",
"id": 11750,
"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": "filter-design, finite-impulse-response, infinite-impulse-response, digital-filters",
... |
programming-challenge, scala
Title: Euler #25 Scala I usually write Euler solutions in Javascript. On problems requiring very large integers I have decided to learn Scala and take advantage of BigInt. I wrote a solution to Euler025, it works fast but reads like Javascript. Will the reviewer please comment on how to wr... | {
"domain": "codereview.stackexchange",
"id": 16048,
"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": "programming-challenge, scala",
"url": null
} |
samtools
I'm curious about the --reference flag. I've never used it before with samtools sort and I'm wondering what behavior it invokes. The online documentation doesn't even mention the flag. Under what circumstances would I want/need to specify the reference genome? You would only need to supply a reference when us... | {
"domain": "bioinformatics.stackexchange",
"id": 542,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "samtools",
"url": null
} |
php, mysql, pdo, authorization
protected function initializeRoles() {
$this->roles = array();
try {
$stmt2 = $this->db->prepare("SELECT rbac_user_roles.USERname, rbac_user_roles.role_id, rbac_roles.role_id, rbac_roles.role_name
FROM rbac_user_roles, rbac_roles
WHERE rbac_user_roles.r... | {
"domain": "codereview.stackexchange",
"id": 30310,
"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, mysql, pdo, authorization",
"url": null
} |
organic-chemistry, regioselectivity, c-c-addition, organoboron-compounds
Title: Why does boron add to the less substituted carbon in the hydroboration of an alkene? In the hydroboration of a typical alkene, the boron fragment ends up attached to the less substituted carbon:
What are the electronic or steric factors t... | {
"domain": "chemistry.stackexchange",
"id": 7534,
"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": "organic-chemistry, regioselectivity, c-c-addition, organoboron-compounds",
"url... |
electromagnetism, magnetic-fields, electric-fields
Title: Does a Faraday cage block magnetic field? I want to block the magnetic field of a very strong magnet, can I put it inside a Faraday cage to block its magnetic field? No. The point of a Faraday cage is that it's made of a conductor, which responds to electric fi... | {
"domain": "physics.stackexchange",
"id": 42003,
"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, magnetic-fields, electric-fields",
"url": null
} |
beginner, array, ruby
pry(main)> array_except(a, 1..Float::INFINITY) # => ["a"]
UPD. Please, note: it doesn't work with the negative ranges as is, but can be adjusted if you decide to go in this direction - for example, via converting ranges with the negative boundaries into "equivalent" ones with the proper positive... | {
"domain": "codereview.stackexchange",
"id": 37496,
"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": "beginner, array, ruby",
"url": null
} |
javascript, react.js, react-native
this.setState({ items: readinessResp, error: 'Success', showTable: true, isLoading: false });
}).catch(error => {
this.setState({ error: 'Failure', errorMsg:'Failure', isLoading: false, isOpen: true, showTable: false ,body: '', tenantId: '' });
});
}
onChang... | {
"domain": "codereview.stackexchange",
"id": 38880,
"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, react.js, react-native",
"url": null
} |
wavelet, image-processing, c, denoising
Title: Denoise images with wavelets I try to understand what following algorithm from this gimp plugin does to denoise an image:
/* Wavelet denoise GIMP plugin
*
* wavelet.c
* Copyright 2008 by Marco Rossini
*
* Implements the wavelet denoise code of UFRaw by Udi Fuchs
... | {
"domain": "dsp.stackexchange",
"id": 2386,
"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": "wavelet, image-processing, c, denoising",
"url": null
} |
formal-languages, regular-languages, finite-automata
$$\{WxW^R : W,x\in \{0,1\}^+\} = \{WxW : W\in\{0,1\} , x\in \{0,1\}^+\}$$
¿Why?
Because there is little restriction to $x$. We can consider that $x$ is almost the whole word with the exception of the first and the last symbol(because in the original language $|W|>0$... | {
"domain": "cs.stackexchange",
"id": 13020,
"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": "formal-languages, regular-languages, finite-automata",
"url": null
} |
electrostatics, conductors
Title: How can the free charges of a conductor redistribute to the surface? I have studied that if I put a conductor (perfect or non-perfect) at rest in a place where there is an electrostatic field, the charges of the conductor will distribute so that negative charges will be in the surface... | {
"domain": "physics.stackexchange",
"id": 38012,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "electrostatics, conductors",
"url": null
} |
molecular-biology, apoptosis
Title: What is Pan for in pan-caspase? A simple question (I could not find it on internet): What is Pan for in pan-caspase? Is it any different from the term 'caspase' ? The term pan, in my opinion, is perhaps one of the most vague that exists in science! I can partley answer this question... | {
"domain": "biology.stackexchange",
"id": 3324,
"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": "molecular-biology, apoptosis",
"url": null
} |
machine-learning, deep-learning, keras
Title: Implementing a CNN with one convolution layer I am trying to implement a 1 channel CNN by slightly changing this article: this article.
The problem is that I am new to keras and deep learning and I don't know this far why I am getting this error:
ValueError: Negative dimen... | {
"domain": "datascience.stackexchange",
"id": 2318,
"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, deep-learning, keras",
"url": null
} |
c++, json, c++17
if (current_state_type == ParserStateType::Error)
{
error_output_stream_ << "Error: Unexpected \"" << processed_char << "\""
<< " at Line:" << line_num << ", Line Position:" << (char_num - line_char_start)
... | {
"domain": "codereview.stackexchange",
"id": 38461,
"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++, json, c++17",
"url": null
} |
But my point was a bit subtler:
When asked to prove something, it is natural to ask: which tools can I use...or, as on these forums, which things has the poster already learned?
An argument can be made to appealing to facts known about polynomials as continuous functions in number theory on the grounds that someone t... | {
"domain": "mathhelpboards.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9805806489800368,
"lm_q1q2_score": 0.8254779434012549,
"lm_q2_score": 0.8418256512199033,
"openwebmath_perplexity": 431.99982312335106,
"openwebmath_score": 0.9035735726356506,
"t... |
You can show that
$$R(z)= \frac{1}{\overline{R\left(\frac{1}{\overline{z}}\right)}}.$$
If $w$ is a zero for $R$, then $\frac{1}{\overline{w}}$ is a pole for $R$. Similarly, the existence of a pole implies the existence of a zero.
• Thank you. I get it that your equation holds for $|z|=1$, but why must it be true for... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9688561694652216,
"lm_q1q2_score": 0.813581431402849,
"lm_q2_score": 0.839733963661418,
"openwebmath_perplexity": 150.2914021661119,
"openwebmath_score": 0.9475528597831726,
"tags"... |
python, python-3.x, linked-list
assert list(self.prepared_linked_list) == [12, 8, 2, 5]
def test_add_first(self):
linked_list = LinkedList()
linked_list.add_first(1)
assert list(linked_list) == [1]
linked_list.add_first(3)
assert list(linked_list) == [3, 1]
linke... | {
"domain": "codereview.stackexchange",
"id": 38058,
"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, linked-list",
"url": null
} |
javascript, php, ajax
Please choose from the menu on the left.</br>
<?php
} elseif ($_SESSION['accesslevel'] < $row['access_level']) {
echo "You are not authorized to use this tool."; // if access level is insufficient.
} else {
$access = ms_escape_string($_GET['p']);
$sql = "SELECT name FROM test.dbo.user... | {
"domain": "codereview.stackexchange",
"id": 4940,
"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, php, ajax",
"url": null
} |
If we replace $I_k$ with $\bar I_k$ then $l(I_k)=l(\bar I_k).$ On the other hand if $G=\{J_k :k\in N\}$ is a set of closed bounded intervals with $A\subset \cup G,$ then for any $e>0$ we can cover each $J_k$ with a bounded open interval $I_k$ with $l(I_k)<e 2^{-k}+l(J_k)$. So $m*=m**$. It is a matter of convenience. Fo... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9759464481549872,
"lm_q1q2_score": 0.8132801809748703,
"lm_q2_score": 0.8333245973817158,
"openwebmath_perplexity": 164.1874655074895,
"openwebmath_score": 0.9304102063179016,
"tag... |
quantum-mechanics, schroedinger-equation, hamiltonian-formalism, notation, interactions
Author of this text first splits the Hamiltonian up as
$$H=H_0+H_{int}$$
The time dependence of operators is governed by $H_0$ while the time
dependence of states is governed by $H_{int}$.
(Question, does this say that the Hami... | {
"domain": "physics.stackexchange",
"id": 20305,
"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, schroedinger-equation, hamiltonian-formalism, notation, interac... |
newtonian-mechanics, forces
Title: Breaking strength of cord when doubled over a pulley Consider the situation in which a piece of cord is looped over a pulley and both free ends are fixed to an object which exerts a 10 kN downward force.
Would the setup hold given a cord with a tensile breaking strength of 8 kN? My ... | {
"domain": "physics.stackexchange",
"id": 73713,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "newtonian-mechanics, forces",
"url": null
} |
c++, c++17, template-meta-programming
Only write concepts that make sense
I see you wrote both has_begin_iterator and has_end_iterator. Does it ever make sense for a class to only have one of those, and do you ever expect to write a template where you only need one of them? I think it makes more sense to just have a s... | {
"domain": "codereview.stackexchange",
"id": 39951,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c++, c++17, template-meta-programming",
"url": null
} |
c#, meta-programming, rubberduck
public override bool CanExecute(object parameter)
{
if (!(parameter is CodeExplorerComponentViewModel))
{
return false;
}
var node = (CodeExplorerComponentViewModel)parameter;
var componentType = node.Declaration.QualifiedName.Qu... | {
"domain": "codereview.stackexchange",
"id": 19968,
"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#, meta-programming, rubberduck",
"url": null
} |
beginner, php, mvc, slim
the same goes for the statistics
and finally in your controller simply
$preferences = $parsedBody['preferences'];
$this->User->preferences->add($preferences);
$this->User->preferencesStatistics->add($preferences);
return $response->withJSON([
"error" => false,
"message" => "operatio... | {
"domain": "codereview.stackexchange",
"id": 38221,
"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": "beginner, php, mvc, slim",
"url": null
} |
special-relativity, particle-physics, photons, speed-of-light, vacuum
$$ H = p\cdot \dot{q} -\cal{L} \equiv p\cdot v -\cal{L}$$
where $v$ is the velocity as time derivative of the canonical coordinate $q$ of the free particle. $p$ is the momentum of the free particle.
Now in relativistic mechanics the Lagrangian of th... | {
"domain": "physics.stackexchange",
"id": 83890,
"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, particle-physics, photons, speed-of-light, vacuum",
"url": n... |
php, sql, mysqli, sql-injection
Procedural or OO
Choose either the procedural style or the OO style for consistency in your code. You are currently using both.
Potential output before header
Since you are not preventing obvious errors, some of the methods can write errors to the page before the header(..) call. This c... | {
"domain": "codereview.stackexchange",
"id": 21939,
"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, sql, mysqli, sql-injection",
"url": null
} |
asteroids, naming
this answer to How official is TNO 486958, 2014 MU69's new name Arrokoth?
How did Biden become VP? (naming of 2012 VP113)
What does "TON" in TON 618 stand for?
What is the naming convention for newly discovered objects? (question #81 from 2013)
Wikipedia's Provisional designation in astronomy; New-st... | {
"domain": "astronomy.stackexchange",
"id": 6560,
"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": "asteroids, naming",
"url": null
} |
experimental-physics, data-analysis
107 275.266
108 278.497
109 281.835
110 287.747
111 290.53
112 294.188
113 296.783
114 303.146
115 306.081
116 309.827
117 314.725
118 314.88
119 319.088
120 320.973
121 323.842
122 327.633
123 329.559
124 332.203
125 336.16
126 340.731
127 343.707 I agree with user253751 comment. T... | {
"domain": "physics.stackexchange",
"id": 76434,
"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": "experimental-physics, data-analysis",
"url": null
} |
quantum-mechanics, inertia
Along another line, one can argue via the Ehrenfest theorem, that:
$$ m \partial_t^2 \langle x \rangle = -\langle \nabla V(x) \rangle$$
Therfore, the Newton axioms hold for the center of mass, if $V(x)$ scales on a scale much smaller than the wave packet (or $V$ is the harmonic oscillator po... | {
"domain": "physics.stackexchange",
"id": 22115,
"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, inertia",
"url": null
} |
Before investigating the relationship between the sine function and the unit circle, examine the parametric equations shown below. Drag the slider at the bottom right to. A curve in the plane is said to be parameterized if the coordinates of the points on the curve, ( x , y ), are represented as functions of a variable... | {
"domain": "caterinacentofante.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9890130599601177,
"lm_q1q2_score": 0.803936395597884,
"lm_q2_score": 0.8128673201042492,
"openwebmath_perplexity": 436.5948135503946,
"openwebmath_score": 0.8174378275871277,
"... |
automata, finite-automata, strings, substrings
The dashed transitions represent the "everything left over" transitions.
It should be easy enough to see that given the table, we can construct the DFA in $O(|W|)$ time (in one pass really). The table can also be constructed in $O(|W|)$ time - the source code on wikipedia... | {
"domain": "cs.stackexchange",
"id": 1555,
"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": "automata, finite-automata, strings, substrings",
"url": null
} |
javascript, linked-list, functional-programming, immutability
/** Returns all elements except the last one. */
function init(xs) {
if (isEmpty(tail(tail(xs)))) return cons(head(xs));
else return cons(head(xs), init(tail(xs)));
}
/** Returns the input list, reversed. */
function reverse(xs) {
if (isEmpty(x... | {
"domain": "codereview.stackexchange",
"id": 4767,
"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, linked-list, functional-programming, immutability",
"url": null
} |
soft-question, sat, terminology
a theory" and when aren't they? Does SMT always imply the theory uses only equality and inequality constraints are always in the broader field of CSP? As far as I can tell, you can often introduce slack variables, so the distinction [if it exists] is less than obvious. | {
"domain": "cstheory.stackexchange",
"id": 3076,
"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": "soft-question, sat, terminology",
"url": null
} |
neptune
Horizons can produce ephemerides of osculating orbit elements. Here's a plot of the eccentricity of the Neptune barycentre, relative to the Sun, for (roughly) one orbital period, with a step size of 2 calendar months. As you can see, it varies quite a bit, and gets extremely low at times.
From: 2397854.5 A.D. ... | {
"domain": "astronomy.stackexchange",
"id": 6297,
"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": "neptune",
"url": null
} |
If
\begin{align*} A= \begin{bmatrix} 2&-3&4\\ 1&0&-7 \end{bmatrix} && B= \begin{bmatrix} 6&2&-4\\ 3&5&2 \end{bmatrix} \end{align*}
then
\begin{align*} A+B&= \begin{bmatrix} 2&-3&4\\ 1&0&-7 \end{bmatrix} + \begin{bmatrix} 6&2&-4\\ 3&5&2 \end{bmatrix}\\ &= \begin{bmatrix} 2+6&-3+2&4+(-4)\\ 1+3&0+5&-7+2 \end{bmatrix} =... | {
"domain": "runestone.academy",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9888419690807407,
"lm_q1q2_score": 0.8014355644746147,
"lm_q2_score": 0.810478913248044,
"openwebmath_perplexity": 281.1879529503222,
"openwebmath_score": 0.9999170303344727,
"tags... |
concurrency, software-engineering, threads
+----+ +----+ +----+ +----+ +----+
| |
| | p4 signal +------+ +------+ +------+
| +----------->| O1/4 |--->| O2/4 |-...->| On/4 |
| ... | {
"domain": "cs.stackexchange",
"id": 5646,
"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": "concurrency, software-engineering, threads",
"url": null
} |
ros, tutorial, rqt
Originally posted by TommyP with karma: 1339 on 2013-07-30
This answer was ACCEPTED on the original site
Post score: 1 | {
"domain": "robotics.stackexchange",
"id": 15085,
"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, tutorial, rqt",
"url": null
} |
rqt
I would really appreciate if anybody can tell me how to figure it out.Thanks!
Originally posted by duanxiaobin on ROS Answers with karma: 36 on 2014-10-29
Post score: 0
Original comments
Comment by Dirk Thomas on 2014-10-29:
It looks like you have an invalid package.xml / manifest.xml somewhere on your ROS_PACKA... | {
"domain": "robotics.stackexchange",
"id": 19881,
"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": "rqt",
"url": null
} |
SO now adding I am getting: -(x+3) -(4-x) = -(8+x) = -1 but not in line with the initial condition.
Thus this range is not possible.
SO I am still not sure where I am getting confused.
Secondy, I am wondering why here |x-4| not equals |4-x|? Under what conditions we can do & when we cannot do such interchange?
http:/... | {
"domain": "gmatclub.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9518632288833653,
"lm_q1q2_score": 0.832001982479805,
"lm_q2_score": 0.8740772384450968,
"openwebmath_perplexity": 1930.506441581238,
"openwebmath_score": 0.7060635685920715,
"tags": nu... |
c, linked-list
// skip all nodes before start pos
while( index < start ) {
temp = temp->next;
index++;
}
// search for given node between [start,stop) stop not included
while( index <stop ) {
retval = cmp_fn( &temp->data, data_ptr);
if( retval == 0 ) {
*pos ... | {
"domain": "codereview.stackexchange",
"id": 28259,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c, linked-list",
"url": null
} |
Now let's say they both let go of the ropes. They each go off on a tangent with velocity $v$. At this point it would be more convenient to use cartesian coordinates so let's do that and let's also orient our coordinate system (with the same fixed origin from above) so that the x-axis is aligned with the direction they ... | {
"domain": "physicsforums.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9702399043329856,
"lm_q1q2_score": 0.8042695141838521,
"lm_q2_score": 0.8289388125473629,
"openwebmath_perplexity": 302.0503213226232,
"openwebmath_score": 0.8466622829437256,
"tag... |
python, reinventing-the-wheel, hash-map
The algorithm in remove is incorrect — it can leave keys unfindable.
This is a common mistake! In The Art of Computer Programming, Knuth comments, "Many computer programmers have great faith in algorithms, and they are surprised to find that the obvious way to delete records fro... | {
"domain": "codereview.stackexchange",
"id": 20277,
"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, reinventing-the-wheel, hash-map",
"url": null
} |
beginner, functional-programming, scala
for(i <- list){
i.update(list)
if(i.dead){
println(s"Bunny ${i.name} died at age ${i.age}!")
list.remove(iterator)
}
else {
if(i.gender == Gender.Male && i.adult){
males += 1;
}else if (... | {
"domain": "codereview.stackexchange",
"id": 7871,
"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": "beginner, functional-programming, scala",
"url": null
} |
php, array
Method I used:
$final = [];
foreach ($input as $k => $d) {
foreach ($d as $ki => $i) {
foreach ($i['attribute'] as $ka => $a) {
foreach ($a['option'] as $ko => $o) {
array_push($final, ['category' => $ki, 'categoryname' => $i['name'], 'attribute' ... | {
"domain": "codereview.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": "php, array",
"url": null
} |
graphs, proof-techniques
A matrix $Q$ is said to be doubly substochastic if its entries are nonnegative and all its row and column sums are at most one.
The doubly stochastic matrix
$\begin{bmatrix} Q & I-D_r\\I-D_c & Q^T\end{bmatrix}$
is a dilation of $Q$, where $D_r$ and $D_c$ are diagonal matrices with the row and... | {
"domain": "cs.stackexchange",
"id": 4083,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "graphs, proof-techniques",
"url": null
} |
thermodynamics, energy, heat-engine
in and out while, in a batch operation, each segment of the process is carried out in a closed system. For an open system, the appropriate equation to use in analyzing the thermodynamic changes is the open system version of the first law of thermodynamics. In a closed system, the ap... | {
"domain": "physics.stackexchange",
"id": 46097,
"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, energy, heat-engine",
"url": null
} |
c++
This usage is fairly typical in C, but in C++, I'd just use:
union CRC16 {
// ...
};
Just like with class/struct, there's no need for a typedef in C++.
As you guessed, this is endian-specific. Given that this is apparently an old DEC protocol, chances are that it's also little-endian. That's good to the degr... | {
"domain": "codereview.stackexchange",
"id": 6471,
"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
} |
homework-and-exercises, kinematics
Title: Basic kinematics task with falling point equation
Suppose the equation of falling point has form of:
$$
\frac{dv}{dt} = g - kv^2
$$
Calculate the terminal velocity
Determine the relation between time and velocity
I'm taking an introduction to physics course and this is a ta... | {
"domain": "physics.stackexchange",
"id": 76757,
"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, kinematics",
"url": null
} |
quantum-mechanics, quantum-field-theory, mathematical-physics, soft-question, path-integral
Title: Intuition for Path Integrals and How to Evaluate Them I'm just starting to come across path integrals in quantum field theory, and want to get the right intuition for the them from the start. The amplitude for propagatio... | {
"domain": "physics.stackexchange",
"id": 16284,
"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-field-theory, mathematical-physics, soft-question, path... |
Item Value
representation as sum of two fourth powers
## Cyclotomic theory
### Cyclotomic extension of primitive roots of unity
Fill this in later
### Constructibility of 17-gon
17 is a Fermat prime, hence the regular 17-gon is constructible by straightedge and compass. This is because the cyclotomic extension of... | {
"domain": "subwiki.org",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9893474891602739,
"lm_q1q2_score": 0.8042082466506397,
"lm_q2_score": 0.8128673246376009,
"openwebmath_perplexity": 538.7891227616308,
"openwebmath_score": 0.8472821116447449,
"tags": nu... |
python, programming-challenge, mathematics
print sum_divisible_naive()
print sum_divisible_fast()
Timings
Original
timeit.timeit('orig.sum_divisible_naive([3,5,7,11,13,17,19,23,29,31,37,39,41], 0, 10**7)', 'from __main__ import orig', number=1)
5.059425115585327
timeit.timeit('orig.sum_divisible_fast([3,5,7,11,1... | {
"domain": "codereview.stackexchange",
"id": 20780,
"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, programming-challenge, mathematics",
"url": null
} |
java, game, adventure-game, battle-simulation
You have drinked should just be You drank, and You are escaped should just be You escaped. The two enemy is should be The two enemies are. Is died should just be died. Recived is spelled Received.
Consider use of switch rather than your repeated ifs when checking input. Al... | {
"domain": "codereview.stackexchange",
"id": 42529,
"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, adventure-game, battle-simulation",
"url": null
} |
problem is probably one of the most interesting and most popular in computer science, especially when we talk about dynamic programming. Thus, by sorting the items by value per pound, the greedy algorithm runs in O(n1gn) time. Two main kinds of Knapsack Problems: 0-1 Knapsack: N items (can be the same or different) Hav... | {
"domain": "alexborsci.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9744347853343058,
"lm_q1q2_score": 0.8243157354115724,
"lm_q2_score": 0.8459424353665381,
"openwebmath_perplexity": 704.8932837987658,
"openwebmath_score": 0.5109421610832214,
"tags": ... |
c#, asp.net-mvc, asp.net-mvc-5, razor
Your model is also referring to ResumeId, but the view code is creating the first dropdownlist for CompanyId so I assume that was just a typo.
Now your view code for the dropdownlists will then be (<div> elements omitted for clarity)
@Html.LabelFor(m => model.CompanyId, new { @cla... | {
"domain": "codereview.stackexchange",
"id": 27167,
"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#, asp.net-mvc, asp.net-mvc-5, razor",
"url": null
} |
web-scraping, rust
fn normalize_url(url: &str) -> Option<String> {
let new_url = Url::parse(url);
match new_url {
Ok(new_url) => {
if new_url.has_host() && new_url.host_str().unwrap() == "rolisz.ro" {
Some(url.to_string())
} else {
None
... | {
"domain": "codereview.stackexchange",
"id": 37516,
"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": "web-scraping, rust",
"url": null
} |
quantum-algorithms, mathematics, grovers-algorithm
Title: Proof that Grover's operator can be written as $D_N=-H_n R_N H_n$ I am interested in showing the validity of the Grover operator. Now there are several ways to show it. One way is with complete induction.
It has to be shown that the following relationship appli... | {
"domain": "quantumcomputing.stackexchange",
"id": 648,
"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, mathematics, grovers-algorithm",
"url": null
} |
machine-learning, regression, logarithmic
noise = np.random.normal(np.mean(dataY), 2, n_sample)
add_noise = np.random.choice(a=[False, True], size=n_sample)
for i in range(n_sample):
if add_noise[i]:
dataY[i] = noise[i]
plt.style.use("dark_background")
plt.rcParams["figure.figsize"] = (8,6)
plt.grid(Fals... | {
"domain": "datascience.stackexchange",
"id": 10026,
"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, regression, logarithmic",
"url": null
} |
ros, gazebo, rviz, ros-melodic, tf2
<gazebo>
<plugin name="joint_state_publisher" filename="libgazebo_ros_joint_state_publisher.so">
<robotNamespace>/mm</robotNamespace>
<jointName>${base_link}__${frame},
${frame}__${crank},
${crank}__${coupler},
... | {
"domain": "robotics.stackexchange",
"id": 35163,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, gazebo, rviz, ros-melodic, tf2",
"url": null
} |
java, interpreter, language-design
}));
// TODO add built-ins
}
public A_RayCode(String code, File input) {
this(code, new ArrayList<>(), new InputIterator(input),
new StringBuilder(), new MutableObject(null), new HashMap<>());
}
public A_RayCode(String code, String i... | {
"domain": "codereview.stackexchange",
"id": 18460,
"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, interpreter, language-design",
"url": null
} |
multilabel-classification
Title: How many training data should I use in multilabel classification? Now I'm using Keras to implement a multi-label classification model. Specifically, I want to classify who present in an audio clip (maximal 8 people). The label of data has 8-bit, for example, [0,1,0,0,1,0,1,1]. It means... | {
"domain": "datascience.stackexchange",
"id": 9675,
"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": "multilabel-classification",
"url": null
} |
exoplanet, orbital-mechanics, orbital-elements
In the case of Kepler-444, the website gives a link to the paper where the orbits were published, Campante et al. (2015). Their table 4 tabulates both $e \cos \omega$ and $e \sin \omega$ for the planets. Unfortunately it is not possible to simply determine the value from ... | {
"domain": "astronomy.stackexchange",
"id": 3494,
"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": "exoplanet, orbital-mechanics, orbital-elements",
"url": null
} |
thermodynamics, thermal-radiation, ideal-gas
At nuclear decay and fission energies neutron speeds are non-relativistic, but still quite fast. Let's use $10^6\,\mathrm{m/s}$.
So the fast neutrons have an initial scattering rate around a billion times per second or a thousand times per microsecond. On average the neutro... | {
"domain": "physics.stackexchange",
"id": 34888,
"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, thermal-radiation, ideal-gas",
"url": null
} |
• An interesting question to consider is whether the resulting graph can be connected; the answer depends on the group but also on the choice of generators. For example, most finite simple groups (the "building blocks" of finite groups, like the prime numbers are for integers) can be represented with three generators. ... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9877587225460771,
"lm_q1q2_score": 0.8273664269631197,
"lm_q2_score": 0.8376199653600371,
"openwebmath_perplexity": 513.6239045443322,
"openwebmath_score": 0.6252457499504089,
"tag... |
+ 2 * ( 2 ) = ax b! Looks like the line will be redisplayed using the new values education and has taught Math a. Because they all have some kind of line it is a straight.... The tell-tale sign of a linear function examples doubled once, so we have y 2x... With highest exponent equal to 1 the unbiased info you need to ... | {
"domain": "custompunkinstencils.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9811668706602658,
"lm_q1q2_score": 0.806704740559978,
"lm_q2_score": 0.822189134878876,
"openwebmath_perplexity": 762.7357737591768,
"openwebmath_score": 0.45887380838394165,
... |
cosmology, big-bang, hydrogen
Nucleosynthesis begins
BBN was now spluttering into action, and the first multi-nucleon element formed is the simplest: deuterium (one proton plus one neutron). However, the temperature was still too high for deuterium to survive, as the energy of some photons was higher than deuterium's ... | {
"domain": "physics.stackexchange",
"id": 58716,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "cosmology, big-bang, hydrogen",
"url": null
} |
rust, git
fn get_width_of_terminal() -> usize{
let size = terminal_size();
if let Some((Width(w),_)) = size {
return w as usize;
}
0 as usize
}
fn process_repo_json(repo_json:Option<Value>, config:Config){
if let Some(json) = repo_json{
if json.is_array() {
if let Some(... | {
"domain": "codereview.stackexchange",
"id": 26331,
"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": "rust, git",
"url": null
} |
macos, macos-lion, osx
vtable for rxtools::LoggerLevelFrame in
rosout_generated.cpp.o
vtable for wxMDIParentFrameBase in
rosout_generated.cpp.o
...
"wxNavigationEnabled::AcceptsFocusFromKeyboard()
const", referenced from:
vtable for rxtools::GenTopicDisplayDialog in
topic_display_generated.cpp.o
vtable for rxtools::To... | {
"domain": "robotics.stackexchange",
"id": 9340,
"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": "macos, macos-lion, osx",
"url": null
} |
frequency-spectrum, machine-learning, classification, source-separation, unsupervised-learning
Title: Classifying 2 Classes of Ultrasound Signal Using Machine Learning by Frequency Domain I have two samples which, when exposed to ultrasound, emit their unique frequency responses. As can be seen in the attached figure,... | {
"domain": "dsp.stackexchange",
"id": 10827,
"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": "frequency-spectrum, machine-learning, classification, source-separation, unsupervised-... |
Characteristic Polynomial
• March 29th 2010, 06:15 PM
joe909
Characteristic Polynomial
Given that the characteristic polynomial of $A$ is $t^4 + t + 1$. How would I go about calculating the characteristic polynomial of $A^2$?
I originally thought of using the fact that the eigenvalues of $A^2$ would simply be the squ... | {
"domain": "mathhelpforum.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9881308800022472,
"lm_q1q2_score": 0.8456929542698346,
"lm_q2_score": 0.8558511543206819,
"openwebmath_perplexity": 144.86959307866354,
"openwebmath_score": 0.9481346011161804,
"ta... |
quantum-field-theory, renormalization, phase-transition, higgs, symmetry-breaking
$$
\frac{1}{\mathrm{volume}} \Gamma[\phi_{\mathrm{cl}}] \approx \lambda\frac{\phi_{\mathrm{cl}}}{4} \left\{ 1 + \frac{\lambda}{16 \pi^2} \left[ (N+8) \left(\log(\lambda \phi_{\mathrm{cl}}^2/M^2) - \frac{3}{2}\right) + 9 \log 3\right] \ri... | {
"domain": "physics.stackexchange",
"id": 63283,
"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, renormalization, phase-transition, higgs, symmetry-breaking"... |
c++, pointers, c++98
If the creation of the _refCount object fails you will leak the pointer. You need to guarantee that the pointer does not leak:
SmartPtr<T>::SmartPtr(T* iObject)
try // Add a try block
:_refCount(new RefCount())
,_ptr(iObject)
{
this->_refCount->AddRef()... | {
"domain": "codereview.stackexchange",
"id": 31468,
"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++, pointers, c++98",
"url": null
} |
rust, pointers
if mem::size_of::<T>() == 0 {
return Some(self.ptr);
}
// SAFETY:
// - `index * self.period` is within bounds of the original slice.
// - `index * self.period` does not overflow an `isize`, since it's
// within bounds of the original slice and a... | {
"domain": "codereview.stackexchange",
"id": 44306,
"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": "rust, pointers",
"url": null
} |
human-biology
Science behind acupuncture
So far, the research on acupuncture has shown that acupuncture can help to suppress pain but probably will not treat diseases.
Really, it all has to do with connective tissue. Connective tissue is tissue that connects, supports, binds, or separates other tissues or organs. In t... | {
"domain": "biology.stackexchange",
"id": 6514,
"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": "human-biology",
"url": null
} |
.
$$n\times\frac{(n-1)!}{(i-1)!(n-i)!}+n\times\frac{(n-1)\times (n-2)!}{(i-2)!(n-i)!}$$
Last edited: May 28, 2007
3. May 30, 2007
### zoki85
Well I tryed and I couldn't make much of progress with this.
This problem I found in one of my calculus textbooks and I think we are supposed to use calculus methods somehow...... | {
"domain": "physicsforums.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9883127433812521,
"lm_q1q2_score": 0.8214292595705546,
"lm_q2_score": 0.8311430415844385,
"openwebmath_perplexity": 2450.7413889395402,
"openwebmath_score": 0.8981857299804688,
"ta... |
ros, urdf, robot-model
Title: omniwheel design in urdf
Do you know any ros-package including an omni-wheel urdf? Or does anyone
happen to design an omniwheel in urdf? I just don't want to re-invent the
wheel :)
By the way, what I mean by omni-wheel is the one having a main wheel and
several roller wheels -mostly perp... | {
"domain": "robotics.stackexchange",
"id": 4728,
"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, robot-model",
"url": null
} |
c++, c++14
Action userAction;
do {
displayMenu();
std::cin >> userAction;
switch(userAction) {
case BADAction: reportError(); break;
case OpenAccount: openAccount(); break;
case CloseAccount: closeAccount(... | {
"domain": "codereview.stackexchange",
"id": 36624,
"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++14",
"url": null
} |
ros
Comment by CJ.Nilson on 2016-12-19:
I'm trying to refer "schunk_robots and canopen_test_utils" as a model for item 4, 5 and 6. Which packages do you recommend for my case? Thanks you very much.
Comment by Mathias Lüdtke on 2016-12-19:
The URDF is used for getting the joint limits and to verify the names of the jo... | {
"domain": "robotics.stackexchange",
"id": 26498,
"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",
"url": null
} |
# When is proving the truth of a biconditional statement "the same" as proving that two propositions are logically equivalent?
In the math book that I am studying, the reader is asked to show that several statements are "logically equivalent"...and then in parentheses, the author says "[i.e.] any one of them implies t... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9732407179787798,
"lm_q1q2_score": 0.8152058485903082,
"lm_q2_score": 0.8376199572530448,
"openwebmath_perplexity": 226.75898337167803,
"openwebmath_score": 0.8172138333320618,
"ta... |
+ \color{blue}{{a_2}^2{b_1}^2} + \color{blue}{{a_2}^2{b_3}^2} - a_2a_3b_2b_3 + {a_3}^2{b_1}^2 - a_1a_3b_1b_3 - a_2a_3b_2b_3 + {a_3}^2{b_2}^2 \\ &= \color{red}{{a_1}^2({b_2}^2 + {b_3}^2)} - \color{green}{2a_1a_2b_1b_2} - 2a_1a_3b_1b_3 + \color{blue}{{a_2}^2({b_1}^2+{b_3}^2)} - 2a_2a_3b_2b_3 + {a_3}^2({b_1}^2 + {b_2}^2) ... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9873750529474512,
"lm_q1q2_score": 0.8072526461089775,
"lm_q2_score": 0.8175744806385543,
"openwebmath_perplexity": 1888.9675328768521,
"openwebmath_score": 1.0000100135803223,
"ta... |
reference-frames, terminology, rotational-kinematics, relative-motion, equilibrium
Title: If the Earth is in constant motion then why do we say that an object is in a state of rest? I got this question as my physics class homework for tomorrow. Anyone please help me out. | {
"domain": "physics.stackexchange",
"id": 24541,
"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": "reference-frames, terminology, rotational-kinematics, relative-motion, equilibrium... |
machine-learning, neural-network, convolution, labels
Title: What's the best strategy to train a CNN with images that only have labels for positive characteristics? I have a large database of images that are only partially labeled for multiple, non-exclusive characteristics or objects present on them. For instance, an... | {
"domain": "datascience.stackexchange",
"id": 2524,
"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, neural-network, convolution, labels",
"url": null
} |
option 4:(False) I made a mistake in the argument of this option. I am correcting it. I will update this option shortly. Sorry for the inconvenience.
FOLLOW BY EMAIL TO GET NOTIFICATION OF NEW PROBLEMS. SHARE YOUR DOUBTS IN THE COMMENTS BELOW. ALSO, YOU CAN SUGGEST PROBLEMS TO SOLVE WHICH WILL BE SOLVED IMMEDIATELY. | {
"domain": "theindianmathematician.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9759464478051827,
"lm_q1q2_score": 0.8024125677351183,
"lm_q2_score": 0.8221891370573388,
"openwebmath_perplexity": 148.00855338585922,
"openwebmath_score": 0.90561479330062... |
javascript, canvas, graphics
}
}
// update the canvas
context.putImageData(bitmap, 0, 0);
}
// setup
drawPicker();
rangeEl.addEventListener("change", drawPicker);
// =========
function hsv2rgb(h, s, v) {
var c = v * s;
var h1 = h / 60;
var x = c * (1 - Math.abs((h1 % 2) - 1));
var m = v - c;
var rg... | {
"domain": "codereview.stackexchange",
"id": 10604,
"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, canvas, graphics",
"url": null
} |
In the previous discussion on shrinking spaces, two other shrinking properties are discussed – property $\mathcal{D}(\kappa)$ and property $\mathcal{B}(\kappa)$. A space $X$ is said to have property $\mathcal{D}(\kappa)$ if every increasing open cover of cardinality $\le \kappa$ for the space $X$ is shrinkable. A space... | {
"domain": "wordpress.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9914225128122336,
"lm_q1q2_score": 0.8082398475701057,
"lm_q2_score": 0.8152324938410784,
"openwebmath_perplexity": 1637.948484019525,
"openwebmath_score": 1.0000100135803223,
"tag... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.