text stringlengths 1 1.11k | source dict |
|---|---|
computational-chemistry, energy
I'll explain. We can determine the lowest energy configuration of a single water molecule in the gas phase. This geometry is inevitably different than a water that is not isolated... a water that is interacting with something else such as another water. If you want to get an interact... | {
"domain": "chemistry.stackexchange",
"id": 2682,
"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": "computational-chemistry, energy",
"url": null
} |
python, python-3.x, image
If you take advantage of the fact that channels is a NumPy array, you can vectorize the calculation.
import numpy as np
import skimage.io
def square_root_filter(input_image_file_name, output_image_file_name):
image_data = skimage.io.imread(input_image_file_name)
for row_data in image... | {
"domain": "codereview.stackexchange",
"id": 23260,
"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, image",
"url": null
} |
design, gears
The first thing to notice is that the trochoidal fillet is considerably more rounded than the previous case, so less bending stress will develop at the root of the tooth and so the gear is more suitable in high-torque scenarios. Also, notice how the trochoidal curve intersects with the involute curve at ... | {
"domain": "engineering.stackexchange",
"id": 1337,
"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": "design, gears",
"url": null
} |
neuroscience
Title: How does the brain fake itself into hearing our own sounds even when we are not speaking? Typically When we are talking to our own selves at any time in the day,the Brain thinks that it's me who's speaking , how does it create illusion of speaking ? Our brains treat 'talking to ourselves' very sim... | {
"domain": "biology.stackexchange",
"id": 9191,
"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": "neuroscience",
"url": null
} |
• To get the final answer we have to choose any 10 numbers from co domain and for a given selection there is only one arrangement that satisfies the strictly increasing condition . That's why the answer is just 29 choose 10. Is this reasoning correct ? – Sudhanshu Aug 14 '15 at 13:37
• @Sudhanshu: I'm not sure what you... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9683812345563904,
"lm_q1q2_score": 0.8069758963859587,
"lm_q2_score": 0.8333245911726382,
"openwebmath_perplexity": 238.615742017113,
"openwebmath_score": 0.8892835378646851,
"tags... |
language (e. Matrix multiplication is not commutative, but it is associative, so the chain can be parenthesized in whatever manner deemed best. Purdue University Purdue e-Pubs ECE Technical Reports Electrical and Computer Engineering 9-1-1992 Implementation of back-propagation neural networks with MatLab. Prim's Algori... | {
"domain": "zonaunderground.it",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9919380084717283,
"lm_q1q2_score": 0.8687264139883583,
"lm_q2_score": 0.875787001374006,
"openwebmath_perplexity": 795.9439563852297,
"openwebmath_score": 0.7114400267601013,
... |
Hint: Let $y=\frac{x}{\sqrt{2}}$ and make a change of variables, then use the formula $$\int_{-\infty}^\infty e^{-x^2}\,dx=\sqrt{\pi}.$$
-
Do you mean we should learn this integral? I have been told by my teacher that indefinite integral of this doesn't exist. – Mr.ØØ7 Apr 8 '13 at 17:07
How do u get $\int_{-\infty}^... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.990140144405512,
"lm_q1q2_score": 0.8095133099206352,
"lm_q2_score": 0.8175744761936437,
"openwebmath_perplexity": 777.8368875856191,
"openwebmath_score": 0.9999926090240479,
"tags... |
tidal-locking, oort-cloud
Title: "Tidally locked" Oort Cloud object Is the Oort cloud spherical enough and are there enough objects in it that it is likely there is at least one in there that it has shown the same face to the sun for billions of years and will continue to do so for billions of years? Just based on cha... | {
"domain": "astronomy.stackexchange",
"id": 6817,
"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": "tidal-locking, oort-cloud",
"url": null
} |
the data. T, transpose(), swapaxes() 2016/8/29 Python Pythonの数値計算モジュールであるNumPyのアレイに対する行・列の入れ替え(転置)に関わるメソッドを記載する。. The central feature of NumPy is the array object class. In NumPy, the arrays. linalg module are implemented in xtensor-blas, a separate package offering BLAS and LAPACK bindings, as well as a convenient int... | {
"domain": "aoly.pw",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9304582593509315,
"lm_q1q2_score": 0.8255068419581696,
"lm_q2_score": 0.8872045937171068,
"openwebmath_perplexity": 1326.5729224795555,
"openwebmath_score": 0.21431176364421844,
"tags": null... |
plate-tectonics, meteorite, diamond, coal
Pressures and temperatures at subduction zones are usually too low to form big diamonds but microdiamonds (10-80 microns) were discovered within metamorphic rocks related to continental collisions. There are five well confirmed diamond-bearing terranes, the Kokchetav massif of... | {
"domain": "earthscience.stackexchange",
"id": 1237,
"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": "plate-tectonics, meteorite, diamond, coal",
"url": null
} |
quadcopter, pid, imu
I want to stabilize a quadcopter with these values and 3 PID regulators like this:
FL = Throttle + (-PitchPID) + (-RollPID) + (+YawPID)
FR = Throttle + (-PitchPID) + (+RollPID) + (-YawPID)
RL = Throttle + (+PitchPID) + (-RollPID) + (+YawPID)
RR = Throttle + (+PitchPID) + (+RollPID) + (-YawPID) | {
"domain": "robotics.stackexchange",
"id": 1377,
"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": "quadcopter, pid, imu",
"url": null
} |
graph-theory, boolean-functions, graph-colouring, approximation
Consider the probability that a uniformly random edge has different colors on its two endpoints. It should be easy to see from the definition that an edge whose endpoints differ in bits $i$ and $j$ has different colors on both end points if and only if ex... | {
"domain": "cstheory.stackexchange",
"id": 4276,
"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": "graph-theory, boolean-functions, graph-colouring, approximation",
"url": null
} |
Then, find the two factors of 30 that will produce a sum of 11. A polynomial formed by the sum of only three terms (three monomials) with different degrees is known as a trinomial. Let’s begin with an example. It consists of only three variables. write the expression in the form ax 2 + bx + c; find two numbers that bot... | {
"domain": "descarga.nu",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9658995742876885,
"lm_q1q2_score": 0.8569505494598672,
"lm_q2_score": 0.8872046041554923,
"openwebmath_perplexity": 731.534725235518,
"openwebmath_score": 0.6123183965682983,
"tags": nul... |
python, python-3.x, discord
"[EU 40](https://www.basket4ballers.com/?controller=cart&add=1&as=true&qty=1&id_product=26471&token=e4d64f25476dcee4b08744d382dc405b&ipa=205055)": 3,
"[EU 40.5](https://www.basket4ballers.com/?controller=cart&add=1&as=true&qty=1&id_product=26471&token=e4d64f25476dcee4b08744d... | {
"domain": "codereview.stackexchange",
"id": 41184,
"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, discord",
"url": null
} |
java, trie
My use of methods, some are static while others are not. For the scope of the methods, I feel like I might have been better off putting the entire search function or getWords function inside the Trie class and not the TrieNode class, but I was unable to figure out how to do that logically.
The use of comme... | {
"domain": "codereview.stackexchange",
"id": 6108,
"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, trie",
"url": null
} |
states-of-matter
Title: Does temperature of boiling solution stay constant? Let us suppose we have a liquid with non-volatile solute, and the solution is raised to its boiling point by applying heat.
Since the solvent is being evaporated, the concentration of solute will increase. Thus, the vapour pressure of solution... | {
"domain": "physics.stackexchange",
"id": 40579,
"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": "states-of-matter",
"url": null
} |
exoplanet, orbital-mechanics, celestial-mechanics, kepler
Eccentricity (the shape of the ellipse)
semi-major axis (the *size of the ellipse)
(inclination, Longitude of ascending node, argument of periapsis) The 3d position of the ellipse. These depend on the particular choice of reference frame. For exoplanets it is... | {
"domain": "astronomy.stackexchange",
"id": 5275,
"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, celestial-mechanics, kepler",
"url": null
} |
sam, samtools, variant-calling
Thank you! That kind of custom fiddling with reads and variants is very cumbersome, non-standard and also error-prone. Do a standard variant calling pipeline and then filter for the mutations that you want. Then extract the variant position (so the coordinates) and get the variant contex... | {
"domain": "bioinformatics.stackexchange",
"id": 2114,
"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": "sam, samtools, variant-calling",
"url": null
} |
electromagnetism, gravity, cosmology, singularities, dark-energy
Title: Potential Distant Future Reversal of Universe's Dark Energy Scalars? Assuming the most probable universe topology/parameterization -- a infinite flat / open universe following the Lambda-CDM model -- and most possibilities postulated on the long t... | {
"domain": "physics.stackexchange",
"id": 37187,
"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, gravity, cosmology, singularities, dark-energy",
"url": null
} |
thermodynamics, work
Title: Work extracted from a pressure cooker How much work can you extract from a turbine connected to a pressure cooker?
The situation is modeled as a rigid adiabatic tank of volume $V_{tank}$, which initially contains water at a high pressure $P_1$ and quality $x_1$.
A tube connects the tank to... | {
"domain": "physics.stackexchange",
"id": 54893,
"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, work",
"url": null
} |
python, game
def add_peg(self):
self.peg = True
def remove_peg(self):
self.peg = False
def possible_jump(self, board):
""" Determine possible jumps for a given peg
:param board: The board to check possible jumps against
:return: Dictionary of possible jumps
""... | {
"domain": "codereview.stackexchange",
"id": 14745,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, game",
"url": null
} |
things taken all at a time, when ‘p’ are alike of one kind, ‘q’ are alike of second, ‘r’ alike of third, and so on . It’s […] The total number of permutations is n! Five factorial, which is equal to five times four times three times two times one, which, of course, is equal to, let's see, 20 times six, which is equal t... | {
"domain": "ase.ro",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9609517061554854,
"lm_q1q2_score": 0.8049123328750193,
"lm_q2_score": 0.8376199633332891,
"openwebmath_perplexity": 883.2959517901801,
"openwebmath_score": 0.7086213827133179,
"tags": nul... |
php, html, validation
<label for="conf-pw" class="bold ui-btn-inline">Bekräfta lösenord:<span class="warning-text left"><?php
if(isset($validation['conf_password'])) {
echo $validation['conf_password'];
}
?></span>
</label>
<inp... | {
"domain": "codereview.stackexchange",
"id": 11698,
"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, html, validation",
"url": null
} |
algorithms, complexity-theory, graphs, np-hard
The only problem is if $s$ and/or $t$ have degree 3. In that case the above procedure must be repeated several times using only one incident edge of $s$ (and eventually only one incident edge of $t$).
In order to formally prove that the algorithm is correct one must prove... | {
"domain": "cs.stackexchange",
"id": 623,
"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": "algorithms, complexity-theory, graphs, np-hard",
"url": null
} |
### Show Tags
08 Feb 2015, 03:50
1
Baten80 wrote:
If n is a positive integer, is n^3 – n divisible by 4 ?
(1) n = 2k + 1, where k is an integer.
(2) n^2 + n is divisible by 6.
(n^3 - n) mod 4 = 0 ?
n(n^2 - 1) mod 4 = 0 ?
(n-1)(n)(n+1) mod 4 = 0 ?
1)n = 2k+1
=> 4k(2k+1)(k+1)
this is div by 4. hence, sufficient.
2) ... | {
"domain": "gmatclub.com",
"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9105453929761733,
"lm_q1q2_score": 0.8005030288145756,
"lm_q2_score": 0.8791467564270271,
"openwebmath_perplexity": 1166.29213101082,
"openwebmath_score": 0.7510614991188049,
"tags": nu... |
ds.algorithms, optimization, terminology, application-of-theory
Now just run a standard min-cost-flow (or min-cost max-flow) algorithm to get your answer.
Of course, not all items will be matched if the total capacity is less than the number of items, but the match will produce the matching that gives the greatest tot... | {
"domain": "cstheory.stackexchange",
"id": 1326,
"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": "ds.algorithms, optimization, terminology, application-of-theory",
"url": null
} |
moveit
<!--LINKS: When a link is specified, the parent joint of that link (if it exists) is automatically included-->
<!--JOINTS: When a joint is specified, the child link of that joint (which will always exist) is automatically included-->
<!--CHAINS: When a chain is specified, all the links along the chain (... | {
"domain": "robotics.stackexchange",
"id": 29054,
"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": "moveit",
"url": null
} |
harmonic-oscillator, frequency, resonance, coupled-oscillators
Delta function and Dirac comb driving
Moving on to the delta function case. Before we march on ahead into the rather complicated Dirac comb case, let's first look at the result of delta function pulse at $t_0$, $F_1 = f_0 \delta(t-t0)$. The results are
\be... | {
"domain": "physics.stackexchange",
"id": 35615,
"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": "harmonic-oscillator, frequency, resonance, coupled-oscillators",
"url": null
} |
# Parallel plane that contain lines
I have the lines:
$$L_1: \frac{x-3}{2}= \frac{y+5}{-3} = \frac{z+1}{5} ,$$ $$L_2: \frac{x+1}{-4}=\frac{y-1}{3}=\frac{z-3}{-1}$$
I need the equations of the parallel planes $P_1$ and $P_2$ that contains those lines. $P_1$ contains $L_1$ and $P_2$ contains $L_2$.
What I did so far:... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.977022632097108,
"lm_q1q2_score": 0.8055179634792995,
"lm_q2_score": 0.8244619285331332,
"openwebmath_perplexity": 127.40167338473562,
"openwebmath_score": 0.8685257434844971,
"tag... |
python, object-oriented, python-3.x, pandas
Title: Subclassing pandas DataFrame for an ETL I'm writing a small ETL, which loads data from CSVs, cleans each table a bit, and then loads everything into a PostgreSQL database. I was planning to use pandas for its built-in capabilities, but am wondering whether to subclass... | {
"domain": "codereview.stackexchange",
"id": 29956,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, object-oriented, python-3.x, pandas",
"url": null
} |
noise
Did I understand their meaning properly? Although noise is often called channel noise in various block diagrams of radio-frequency (RF) communications systems that communications analysts draw, the truth of the matter is that most actual RF channels are mostly noiseless, and what is referred to as the channel no... | {
"domain": "dsp.stackexchange",
"id": 7383,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "noise",
"url": null
} |
python, object-oriented, python-2.x, pygame, chess
'c': 447,
'd': 376,
'e': 305,
'f': 234,
'g': 163,
'h': 92,
'i': 21
}
self.coords_x = None
self.coords_y = None
self.update()
self.begin() | {
"domain": "codereview.stackexchange",
"id": 14659,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, object-oriented, python-2.x, pygame, chess",
"url": null
} |
c++, template, polymorphism
A get_(A const*) const {
if (type != tA) {
throw bad_multitype_access(typeid(A), current_type());
}
return *a;
}
B get_(B const*) const {
if (type != tB) {
throw bad_multitype_access(typeid(B), current_type());
}
... | {
"domain": "codereview.stackexchange",
"id": 20762,
"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++, template, polymorphism",
"url": null
} |
graphs, turing-machines, automata, connected
Title: Decidability of directed strongly connected graphs Consider the problem of determining if a directed graph is strongly connected.
How to phrase it as a language and prove that it's decidable.
My Thoughts :
To think of decidability given a graph I could run DFS on e... | {
"domain": "cs.stackexchange",
"id": 18087,
"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, turing-machines, automata, connected",
"url": null
} |
newtonian-gravity, atmospheric-science, gas
(this was removed from the page as a result of this question in August 2022)
It all seems plausible enough... for a body to retain an atmosphere of a gas, the velocity of gas molecules in its exosphere must be mostly below escape velocity, implying either plenty of gravity, ... | {
"domain": "physics.stackexchange",
"id": 76156,
"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-gravity, atmospheric-science, gas",
"url": null
} |
rqt
Original comments
Comment by jayess on 2017-07-31:
How did you install ROS? Did you setup your environment properly?
Comment by cmacks on 2017-07-31:
I installed ros using the Jetson Hacks InstallRosTX2 package they made. I also did check that all of my files are in order. Ive run roswtf as well to check for any e... | {
"domain": "robotics.stackexchange",
"id": 28492,
"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
} |
ros
Title: What's wrong with code.ros.org?
Hello,everyone.I am a new university student who want to study ros.I had installed the ros system successfully and made the robot running.Now I want to get other package to study,but I found that 'code.ros.org' cannot be visited.It has some svn package which I want.I can vis... | {
"domain": "robotics.stackexchange",
"id": 28133,
"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
} |
pcl
Title: PCL point_types.h #pragma warning
I am getting the following warning when attempting to compile a program that includes point_types.h
/opt/ros/groovy/include/pcl-1.6/pcl/point_types.h:56:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
The warning does not interfere with the build. However, so ma... | {
"domain": "robotics.stackexchange",
"id": 12584,
"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": "pcl",
"url": null
} |
taxonomy, species, species-distribution
Title: Can two different species in the same genus generally succeed in the same habitat? This plant-care website writes
In the context of plant care, usually most plants within the same genus need the same environmental conditions suitable for plant growth. If the genus of a p... | {
"domain": "biology.stackexchange",
"id": 9360,
"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": "taxonomy, species, species-distribution",
"url": null
} |
java, array
So if it sees one even number followed by an odd number, it will abort and return false. The evensCount will be equal to 1.
If it sees three or more consecutive even numbers, it will return false once it sees the next odd number. Or when it is done iterating if the even numbers last until the end.
If... | {
"domain": "codereview.stackexchange",
"id": 41882,
"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, array",
"url": null
} |
In general $a^x-1$ is composite if $x$ is composite. This can be seen very easily by writing out the numbers in the base $a$. The number will have $x$ digits, and where $x$ is composite, possible factorisations involving $a^y-1$ (where $y$ is a factor of $x$) become obvious.
$2^4-1$ in binary is $1111$ which can be fa... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.966914019704466,
"lm_q1q2_score": 0.8036438653541065,
"lm_q2_score": 0.8311430478583168,
"openwebmath_perplexity": 183.3690890733987,
"openwebmath_score": 0.9577192664146423,
"tags... |
java, algorithm
private void helper(int digitSize, int target, List<Integer> candidates, int accumulatedSum) {
//Base case: No more digits to consider and nothing else to add
if(digitSize == 0 && target == 0) {
candidates.add(accumulatedSum);
}
//There is nothing else to... | {
"domain": "codereview.stackexchange",
"id": 28212,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, algorithm",
"url": null
} |
php, optimization
Title: Optimize switch case for dynamic content I have written a function for switching advert image based on $template. Function is working completely fine without any problem and getting everything dynamically with no issue.
Concerning performance, I want some feedback and suggestion from you exper... | {
"domain": "codereview.stackexchange",
"id": 5603,
"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, optimization",
"url": null
} |
condensed-matter, photons, solid-state-physics, electronic-band-theory, photonics
So if I am interpreting this correctly, you don't need to know how 'filled' the band as you state in the electron case. | {
"domain": "physics.stackexchange",
"id": 90127,
"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": "condensed-matter, photons, solid-state-physics, electronic-band-theory, photonics"... |
java, hangman
// ////Chose Categories Menu(2)========>
dPnl2.setLayout(null);
// /Initialize WordList Icon\Label--->
dPnl2.add(wordlist);
wordlist.setBounds(100, 75, 150, 75);
wordlist.setIcon(wList);
// /Initialize Go To 1st Menu Button---------->
dPnl2.add(btnB... | {
"domain": "codereview.stackexchange",
"id": 3169,
"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, hangman",
"url": null
} |
c++, beginner, interview-questions, math-expression-eval
stringstream convert(tempNumStr);
convert >> tempNum;
myVariables.at(leftSide) += tempNum;
tempNum = 0;
tempNumStr = "";
additionTime = false;
... | {
"domain": "codereview.stackexchange",
"id": 30566,
"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, interview-questions, math-expression-eval",
"url": null
} |
c++, performance, strings, c++17
Think about what you are trying to accomplish in terms of interfaces and protocols… especially standard ones. You are trying to make a string class… so what does the standard string class interface look like in C++ (for this, you can use std::string_view as a model of what a constant s... | {
"domain": "codereview.stackexchange",
"id": 44386,
"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, strings, c++17",
"url": null
} |
transcription, human-genome, genomes, gene-regulation
Title: Number of transcription factor genes in the human genome What is the number of the transcription factor genes present in the human genome? Does this value differ compared to Mus musculus, Drosophila melanogaster, Arabidopsis thaliana, C. elegans and S. cerev... | {
"domain": "biology.stackexchange",
"id": 3188,
"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": "transcription, human-genome, genomes, gene-regulation",
"url": null
} |
quantum-mechanics, hilbert-space, superposition, thought-experiment, schroedingers-cat
Third, they were wrong because quantum mechanics does imply that such superpositions are totally allowed and must be allowed and this fact can be experimentally verified – not really with cats but with objects of a characteristic si... | {
"domain": "physics.stackexchange",
"id": 14924,
"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, hilbert-space, superposition, thought-experiment, schroedingers... |
operating-systems, concurrency, synchronization, mutual-exclusion, semaphore
What are the ways in which a system ensures atomicity? A possible implementation is to have the semaphore counter protected by a spinlock, in order to avoid concurrent accesses (a spinlock manages a lightweight critical section). When the val... | {
"domain": "cs.stackexchange",
"id": 21328,
"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": "operating-systems, concurrency, synchronization, mutual-exclusion, semaphore",
"url":... |
quantum-chemistry, molecular-orbital-theory, spectroscopy
To summarize, the only point in the process in which the electrons are in a fixed eigenstate is immediately after ionization (before relaxation), and this eigenstate is described by the set of symmetry-allowed MO theory orbitals that correspond to the $T_d$ sym... | {
"domain": "chemistry.stackexchange",
"id": 12937,
"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, spectroscopy",
"url": null
} |
employ the concept of limit: roughly, a function is continuous if all of its limits agree with the values of the function. In order to check if the given function is continuous at the given point x … Limits and Continuity of Functions In this section we consider properties and methods of calculations of limits for func... | {
"domain": "bestfortnitesettings.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9808759663238371,
"lm_q1q2_score": 0.8152482381700669,
"lm_q2_score": 0.831143045767024,
"openwebmath_perplexity": 352.7097225441085,
"openwebmath_score": 0.82933849096298... |
2.9k views
Randomized quicksort is an extension of quicksort where the pivot is chosen randomly. What is the worst case complexity of sorting n numbers using Randomized quicksort?
1. $O(n)$
2. $O(n \log n)$
3. $O(n^2)$
4. $O(n!)$
edited | 2.9k views
0
There are following two cases, when Randomized Quick Sort will re... | {
"domain": "gateoverflow.in",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9648551535992067,
"lm_q1q2_score": 0.8482492848189348,
"lm_q2_score": 0.8791467627598857,
"openwebmath_perplexity": 1102.377215325061,
"openwebmath_score": 0.5233513116836548,
"tags"... |
ros, c++, opencv, frame, array
using namespace std;
namespace enc = sensor_msgs::image_encodings;
rd_ctrl::proc_data points;
ros::Publisher data_pub_;
static const char WINDOW[] = "Image window";
class ImageConverter
{
ros::NodeHandle nh_;
image_transport::ImageTransport it_;
image_transport::Subscriber ima... | {
"domain": "robotics.stackexchange",
"id": 13219,
"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, c++, opencv, frame, array",
"url": null
} |
c#, programming-challenge, interview-questions
The first three changes don't really speed things up, and the last one is fairly input-specific. For a significant and more reliable performance improvement, replace the hash with an array of booleans:
var presence = new bool[array.Length + 1];
foreach (var value in array... | {
"domain": "codereview.stackexchange",
"id": 32669,
"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#, programming-challenge, interview-questions",
"url": null
} |
visible-light, reflection, refraction
Title: Angles of Refraction,Internal reflection and incidence First ill ask my question in brief and then ill elaborate it below...
Theoretically is it that internal reflection occurs within a solid sphere(which is considered to be the denser medium) if and only if the angle that... | {
"domain": "physics.stackexchange",
"id": 59615,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "visible-light, reflection, refraction",
"url": null
} |
c#, game, community-challenge
// Game is a Board of Quadrant instances.
public class Game : BoardT<Quadrant>
{
readonly Variant variant;
public PreviousPlay PreviousPlay { get; private set; }
public Game(Variant variant)
: base(getCellState)
{
Location.A... | {
"domain": "codereview.stackexchange",
"id": 6002,
"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#, game, community-challenge",
"url": null
} |
it is a rectangle. Also, opposite angles of a rhombus are equal, which means summing up the four angles will give you 360 degrees, i.e. It has two pairs of equal angles. You can reject x = –1 because that would result in triangle HBO having legs with lengths of –1 and 0. Length of a chord of a circle; Height of a segme... | {
"domain": "japankalligrafia.hu",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9755769056853638,
"lm_q1q2_score": 0.8232845786184293,
"lm_q2_score": 0.8438951084436077,
"openwebmath_perplexity": 454.45409889214636,
"openwebmath_score": 0.6270784735679626,... |
python, python-3.x, error-handling, meta-programming, memoization
Title: Memoizing decorator with retries - now with backoff added! (Part 3) A continuation of Memoizing decorator with retries, part 2, and related to https://codereview.stackexchange.com/a/133493/47529. I liked my decorator before, but especially in my ... | {
"domain": "codereview.stackexchange",
"id": 20927,
"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, error-handling, meta-programming, memoization",
"url": nu... |
proof-assistants
fooℕ : ∀ { A : Set } -> A ≡ ℕ → A → A
fooℕ refl a = a + 3
These cases are (probably) handled by a few standard induction principles for equality (AKA dependent elimination principles), such as "path induction" and "based path induction", which do not rely on axiom K, but are a fundamental ingredient ... | {
"domain": "cs.stackexchange",
"id": 12328,
"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": "proof-assistants",
"url": null
} |
python, regex, bioinformatics
with open(sys.argv[1],'rb') as xml:
for line in xml:
if re.search('<Iteration_query-def>', line) != None:
line = line.strip()
line = line.rstrip()
line = re.sub('<Iteration_query-def>', '', line)
line = re.sub('</Iteration_query-... | {
"domain": "codereview.stackexchange",
"id": 7766,
"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, regex, bioinformatics",
"url": null
} |
classical-mechanics, lagrangian-formalism
solve the smooth dynamics with no collision, governed by the principles of dynamics, namely (if we can treat the ball as a point mass):
$m \ddot{\mathbf{r}} = \mathbf{f} \qquad$ for $t \in [t_{i-1}, t_i]$
integrate the dynamics, find the time when the $i^{th}$ collision occur... | {
"domain": "physics.stackexchange",
"id": 92345,
"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, lagrangian-formalism",
"url": null
} |
ubuntu
Title: Dirty Uninstall of ROS
Hello all,
I am running ROS on Ubuntu 11.04. I can't remember how I exactly installed ROS but I distinctly remember using svn. I wanted to make sure my ros was up to date after doing an svn update and a make in my ros folder but I couldn't figure out how to check my installation... | {
"domain": "robotics.stackexchange",
"id": 6287,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ubuntu",
"url": null
} |
ros, ros2, library
Title: using ament_cmake to build and use a shared library
I am building a shared library for use in another package. I'm using ROS2 dashing.
I followed the instructions of the ament_cmake user documentation, but the client project could not find my library's header files unless I added the ament_... | {
"domain": "robotics.stackexchange",
"id": 34856,
"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, ros2, library",
"url": null
} |
symmetry, fermions, lattice-model, spin-models, spin-chains
Title: Jordan-Wigner transformation for lattice models without $U(1)$ symmetry The Jordan-Wigner transformation is a powerful approach to studying one-dimensional spin models. The following dictionary between spin operators and creation/annihilation operators... | {
"domain": "physics.stackexchange",
"id": 74947,
"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": "symmetry, fermions, lattice-model, spin-models, spin-chains",
"url": null
} |
Unfortunately, this answer doesn't check out, so I'm doing something wrong, probably in my key assumption, but I don't see it. Can somebody help?
Thanks.
3. Hello, joatmon!
Two carts, A and B, are connected by a rope 39 feet long that passes over a pulley P.
The point Q is on the floor h = 12 ft directly beneath P a... | {
"domain": "mathhelpforum.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9724147185726374,
"lm_q1q2_score": 0.8431183377014179,
"lm_q2_score": 0.8670357632379241,
"openwebmath_perplexity": 735.9988823184675,
"openwebmath_score": 0.7461757063865662,
"tag... |
electrochemistry, electricity
The complete story would hardly fit in an answer (and, moreover, it is explained in any decent textbook on the subject), so I'll focus on the details that are especially wrong. First of all, the double electric layer, being electrically charged, creates an electric field of its own, and t... | {
"domain": "chemistry.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": "electrochemistry, electricity",
"url": null
} |
beginner, c, linked-list
#endif // NODE_H_INCLUDED Overall design
Linked list are often used quite heavily in an application such that there may be many, millions, of your link lists. Many of these, maybe even most, will be empty lists. To that end, I would forego the head node and use a null pointer to indicate an ... | {
"domain": "codereview.stackexchange",
"id": 43012,
"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, c, linked-list",
"url": null
} |
quantum-mechanics, momentum, operators, hamiltonian-formalism, commutator
In the classical Hamiltonian formalism the $q^i$ and $p_j$ satisfy the canonical Poisson bracket relations $\{q^i,p_j\}=\delta^i_j.$
In the quantization process, the Poisson bracket relations get replaced by canonical commutation relations $[\ha... | {
"domain": "physics.stackexchange",
"id": 7328,
"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, momentum, operators, hamiltonian-formalism, commutator",
"url"... |
java
Map headers = new HashMap();
headers.put("userName", API_USER_NAME);
headers.put("password", API_PASSWORD);
Map criteria = new HashMap();
criteria.put("headers", headers);
criteria.put("url", API_BASE_URL_V1 + API_LOGIN_TOKEN_PATH);
... | {
"domain": "codereview.stackexchange",
"id": 28895,
"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",
"url": null
} |
group-theory, representation-theory, group-representations
On the other hand to understand what the dimension of a (linear) representation is we shall understand what a linear representation means. Group elements are abstract in the sense that they are defined by the way they act on certain objects. For example, the r... | {
"domain": "physics.stackexchange",
"id": 47440,
"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": "group-theory, representation-theory, group-representations",
"url": null
} |
theoretical-chemistry, density-functional-theory, hydrogen-bond
Title: Electronic density distribution in hydrogen bond I'm currently studying about the atomic configuration of electrostatic interactions. Concept is there that in case of interactions like in N-H...N-H (amides), the stability depends on the position of... | {
"domain": "chemistry.stackexchange",
"id": 3744,
"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": "theoretical-chemistry, density-functional-theory, hydrogen-bond",
"url": null
} |
java, multithreading, api, asynchronous
logger.debug("Mixpanel message to be sent: " + message);
final String url = MIXPANEL_API_ENDPOINT + encode;
logger.debug("Mixpanel URL to call: " + url);
URL apiURL; | {
"domain": "codereview.stackexchange",
"id": 6472,
"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, multithreading, api, asynchronous",
"url": null
} |
vba, excel
.Find() uses the current Find settings exactly as they are in the find dialog box, so you'll want to set as many of the parameters as are important to you. I've set a minimum in the code sample - you may need more
.Find() will continue looping through your workbook with no warning that it's returned to the ... | {
"domain": "codereview.stackexchange",
"id": 13040,
"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": "vba, excel",
"url": null
} |
python, beginner, wordle
Title: Correct logic for string comparison in Wordle I'm a beginner trying to make a Wordle clone in python. I already have most of it sorted out but am concerned about my code being difficult to read. The part I'm struggling with the most is the algorithm for how guesses are displayed.
An eas... | {
"domain": "codereview.stackexchange",
"id": 43694,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, beginner, wordle",
"url": null
} |
algorithms, graphs, shortest-path
Title: Dijkstra to favor solution with smallest number of edges if several paths have same weight You can modify any graph $G$ so that Dijkstra's finds the solution with the minimal number of edges thusly:
Multiply every edge weight with a number $a$, then add $1$ to the weight to pen... | {
"domain": "cs.stackexchange",
"id": 537,
"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": "algorithms, graphs, shortest-path",
"url": null
} |
ros, raspbian
Title: ROS Indigo on Raspberry Pi 3 urdf_model/utils.h: No such file
Hi everyone, I have such a uncommon problem and haven't found solution yet.
I am followed instructions on ROSberry Pi to install ROS Indigo on Raspberry Pi 3.
I used ros_comm (Bared Bones) on Raspbian Jessie Lite .
I am using package u... | {
"domain": "robotics.stackexchange",
"id": 26596,
"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, raspbian",
"url": null
} |
rotation, planetary-atmosphere, magnetic-field, planetary-science, habitable-zone
Title: Can a tidally locked planet sustain a magnetic field The vast majority of stars in the Galaxy, and probably the universe, are red dwarfs. The habitable zones of these stars are very close to the stars themselves, often within what... | {
"domain": "astronomy.stackexchange",
"id": 6786,
"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": "rotation, planetary-atmosphere, magnetic-field, planetary-science, habitable-zone... |
a power series, defined by Note that most textbooks start with n = 0 instead of starting at 1, because it makes the exponents and n the same (if we started at 1, then the exponents would be n - 1). Interval of Convergence for a Power Series In other words, according to Paul's Online Notes , a power series may converge ... | {
"domain": "com.br",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9857180669140008,
"lm_q1q2_score": 0.8192727267096109,
"lm_q2_score": 0.8311430562234877,
"openwebmath_perplexity": 278.51536146426156,
"openwebmath_score": 0.9204405546188354,
"tags": nu... |
performance, beginner, c
if (fp == NULL) return -1;
while (recipe != NULL) {
if (fprintf(fp, "%s;", recipe->name) <= 0) {
return -1;
}
Ingredient* curr = recipe->ingredients;
while (curr != NULL) {
if (curr->amount == 0) {
if (fprintf(fp, "... | {
"domain": "codereview.stackexchange",
"id": 37120,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "performance, beginner, c",
"url": null
} |
navigation, ekf, gps, navsat-transform, robot-localization
Originally posted by M@t on ROS Answers with karma: 2327 on 2016-06-17
Post score: 0 | {
"domain": "robotics.stackexchange",
"id": 24965,
"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, ekf, gps, navsat-transform, robot-localization",
"url": null
} |
FunctionExpand@ComplexExpand[Solve[z^2 == 1 + 2 I]] /.
(*
{{z -> -I Sqrt[1/2 (-1 + Sqrt[5])] - Sqrt[1/2 (1 + Sqrt[5])]},
{z -> I Sqrt[1/2 (-1 + Sqrt[5])] + Sqrt[1/2 (1 + Sqrt[5])]}}
*)
• Truly amazing. Will it work on any "simpler" complex equation or is it targeted to a special form of z^2=a+bi equations? How on ear... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9465966747198242,
"lm_q1q2_score": 0.8337595865977766,
"lm_q2_score": 0.8807970795424087,
"openwebmath_perplexity": 7900.868121344262,
"openwebmath_score": 0.3618689775466919,
"tag... |
molecular-biology, pcr, primer
After the primers were delivered, I set up a few mastermixes for PCR. I followed the manufacturer instruction for setting up the mastermixes and the program (https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Roche/Bulletin/1/elongnrobul.pdf). The melting point of my forward pri... | {
"domain": "biology.stackexchange",
"id": 9704,
"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, pcr, primer",
"url": null
} |
javascript, jquery, portability, userscript, linkedin
$(document).on('scroll', function (event) {
$('li.card.guest').hide();
});
This version uses jQuery in a Chrome compatible way:
// ==UserScript==
// @name Hide invites - Chrome compatible
// @namespace http://dannnno.github.io/
// @description Hides those "In... | {
"domain": "codereview.stackexchange",
"id": 15339,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "javascript, jquery, portability, userscript, linkedin",
"url": null
} |
c#, asp.net
await next();
});
//attach response caching middleware
app.UseResponseCaching();
//add header to see when cache was generated (so i can debug is it working)
app.Use(async (ctx, next) => {
if (ctx.Request.Method != "GET") {
await next();
return;
}
ctx.Response.Headers.Remove("I... | {
"domain": "codereview.stackexchange",
"id": 41270,
"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",
"url": null
} |
thermodynamics, statistical-mechanics, entropy
This proof may be adjusted to particular or general physical systems, both classical ones and quantum ones. Please ignore the invasive comments on the Wikipedia about Loschmidt's paradoxes and similar stuff which is based on a misunderstanding. The H-theorem is a proof th... | {
"domain": "physics.stackexchange",
"id": 71213,
"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, statistical-mechanics, entropy",
"url": null
} |
when a particular thing is to be always included in each arrangement = r n-1 P r-1 In Quantitative Aptitude one should be thoroughly familiar with permutation and Combination of restrictions imposed, these can arranged. When letters or items have to stay together can gain confidence but after some practicing some onlin... | {
"domain": "justwilliet.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9648551566309689,
"lm_q1q2_score": 0.808181946785722,
"lm_q2_score": 0.8376199694135332,
"openwebmath_perplexity": 890.4823211189182,
"openwebmath_score": 0.45561349391937256,
"tags"... |
forces, solid-state-physics, potential-energy, spring, stress-strain
How is PE actually stored in a steel spring at the atomic level?
The explanation for this lies in quantum mechanics
2)
Could you explain in detail how/where potential energy is actually stored in a steel spring and why the material never surrenders... | {
"domain": "physics.stackexchange",
"id": 20798,
"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": "forces, solid-state-physics, potential-energy, spring, stress-strain",
"url": nu... |
magnetic-fields
Title: Is magnetic field strength (Teslas) inversely proportional to distance from the magnet squared? I can't find a solid answer on this, I've read that magnetic force is inversely proportional to distance squared so does that mean it's strength is too? The problem is that you have to define what sou... | {
"domain": "physics.stackexchange",
"id": 88631,
"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": "magnetic-fields",
"url": null
} |
It's not a trick question! Looks like you made an off-by-one error - it happens to all of us. In particular, you wrote $|M|=11$, presumably because the last value is $11 \times 10$ and you're counting up in $10$s. But let's write out the elements of $M$ fully and see what happens:
$$M= \{0,10,20,30,40,50,60,70,80,90,1... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9653811601648193,
"lm_q1q2_score": 0.8387490077848653,
"lm_q2_score": 0.8688267830311354,
"openwebmath_perplexity": 255.47176864552912,
"openwebmath_score": 0.9491148591041565,
"ta... |
ros
Title: glc installation in ubuntu 12.04
I want to record the figure(point cloud) displayed in rviz as a jpeg image.I followed the instructions in [RecordingOpenGLAppsWithGLC](http://ros.org /wiki/RecordingOpenGLAppsWithGLC) but unable to install.
while following the steps as shown in screenshot i get an error:-
... | {
"domain": "robotics.stackexchange",
"id": 12141,
"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
} |
climate-change, atmospheric-chemistry, atmospheric-radiation, upper-atmosphere
Why $Al_2O_3$?
Foreword: I am not expert on this and just read some articles on this topic.
According to Weisenstein et al. (2015), fine aluminum particles (as well as diamonds) are an alternative to sulfate particles. According to them, al... | {
"domain": "earthscience.stackexchange",
"id": 1043,
"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": "climate-change, atmospheric-chemistry, atmospheric-radiation, upper-atmosphere... |
organic-chemistry, stability, carbocation
I can't wrap my head around which one is correct? There are mainly two factors governing this phenomenon of ring expansion and rearrangement of carbocation, mainly Stability factor and Thermodynamic factor. When you have a carbocation which can rearrange within itself, it will... | {
"domain": "chemistry.stackexchange",
"id": 10673,
"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, stability, carbocation",
"url": null
} |
the pseudoinverse of a matrix? That is, you are actually solving the minimization problem of,$E(W) =\frac{1}{2}\sum \left(y^{(i)}-W ^Tx^{(i)}\right)^2$by differentiating the error w.r.t$W$. Search for other works by this author on: CCA-Almost-Full Anonymous Group Signature with Verifier Local Revocation in the Standard... | {
"domain": "shimmertans.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9609517072737737,
"lm_q1q2_score": 0.8109424433325021,
"lm_q2_score": 0.843895106480586,
"openwebmath_perplexity": 1276.527270450124,
"openwebmath_score": 0.5571944117546082,
"ta... |
general-relativity, gravity, angular-momentum, centrifugal-force
Title: Why can't we feel the Earth (or being in any non-inertial frame) rotating? I have read this question:
Why can't we feel the Earth turning?
My question is different, because that question does not talk about (only the comments) the fact (that I thi... | {
"domain": "physics.stackexchange",
"id": 52487,
"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, angular-momentum, centrifugal-force",
"url": null
} |
javascript, jquery, html, css, css3
<p class="c_txt">Lorem ipsum dolor sit amet, consectetur adipiscing elit. In pretium est eu enim hendrerit, nec cursus libero bibendum. Mauris elit turpis, ultricies sed odio sollicitudin, varius rhoncus erat. Morbi cursus feugiat arcu at efficitur. In nec vulputate erat. Integer la... | {
"domain": "codereview.stackexchange",
"id": 9743,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "javascript, jquery, html, css, css3",
"url": null
} |
Proposition. Every commutative monoid $C$ has at most one basis.
(The concept "idempotent commutative monoid" also has this remarkable property.)
Of course, this holds even if we change from additive to multiplicative notation; so, writing $\mathbb{N}^\times$ for the set $\mathbb{N} \setminus \{0\}$ viewed a commutat... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9843363489908259,
"lm_q1q2_score": 0.8265806599660777,
"lm_q2_score": 0.8397339596505965,
"openwebmath_perplexity": 203.84582501835078,
"openwebmath_score": 0.9159128069877625,
"ta... |
This solution implemented in one of the tester’s solutions below. (Sets are implemented as bitmasks.)
## Solution 2
A different solution involves considering all primes > 10 specially, not just primes > 50. The insight here that we will use heavily is that each number has at most one prime factor > 10.
We will need ... | {
"domain": "codechef.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9921841123662666,
"lm_q1q2_score": 0.8065140427181402,
"lm_q2_score": 0.8128673223709251,
"openwebmath_perplexity": 1640.9128890158113,
"openwebmath_score": 0.8088893890380859,
"tags": ... |
Then from $\bar{\Psi}(z)=\Psi{(\bar{z})}$ and the reflection formula $\Psi(1-z)-\Psi(z)=\pi\cot(\pi z)$ we have: \begin{aligned} \hat{F}(k)&=1+2\,k\,\Im \left( \Psi \left( \dfrac{1-ik}{2} \right) -\Psi \left( 1-ik \right) \right)\\ & =\pi k\left( -\tanh \left( \frac{\pi k}{2} \right)+ \coth \left( \pi \,k \right)\right... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9783846691281407,
"lm_q1q2_score": 0.8482944832111032,
"lm_q2_score": 0.8670357477770337,
"openwebmath_perplexity": 599.0337981774695,
"openwebmath_score": 0.9994819760322571,
"tag... |
optics, condensed-matter, refraction
Why f does not change what is the physical explanation?
The individual photon's energy given by the equation does not change , thus it will keep contributing to a classical em wave of frequency $f$
there will be apart of reflection also some absorption, how light absorption, los... | {
"domain": "physics.stackexchange",
"id": 83885,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "optics, condensed-matter, refraction",
"url": null
} |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.