text stringlengths 49 10.4k | source dict |
|---|---|
java, beginner
}
Dungeon.java
import java.awt.EventQueue;
import javax.swing.JFrame;
import java.util.Random;
import javax.swing.JPanel;
import java.awt.CardLayout;
import javax.swing.JComboBox;
import java.awt.BorderLayout;
import java.awt.event.ItemListener;
import java.awt.event.ItemEvent;
import java.awt.Dimensio... | {
"domain": "codereview.stackexchange",
"id": 42106,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "java, beginner",
"url": null
} |
And, sure enough: . $8 + 2\sqrt{15} \;=\;(\sqrt{3} + \sqrt{5})^2$ | {
"domain": "mathhelpforum.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9915543740571682,
"lm_q1q2_score": 0.8106695523946761,
"lm_q2_score": 0.8175744806385543,
"openwebmath_perplexity": 1213.502978920317,
"openwebmath_score": 0.9789343476295471,
"tag... |
ros
Title: Gazebo crashes intermittently (race condition?) when run from roslaunch alongside ROS (gazebo_gui-2, gazebo_gui-3])
Summary
Gazebo will crash intermittently when I run it from roslaunch in conjunction with other ROS nodes
If I roslaunch a .launch file that starts a .world file via gazebo_ros, Gazebo does ... | {
"domain": "robotics.stackexchange",
"id": 4212,
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"lm_name": null,
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"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros",
"url": null
} |
python, performance
if device_token is None:
device_token = uuid.uuid4()
if event_timedate is None:
event_timedate = await get_random_utc_timestamp()
customer_login = CustomerLogin_PydanticIn(
event_timedate=event_timedate,
user_id=user_id,
... | {
"domain": "codereview.stackexchange",
"id": 41118,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "python, performance",
"url": null
} |
red. So if there is a graph, it is a circle (or a point). 1 x y Figure 15. The ellipse is symmetrical about both its axes. Deriving the Polar Equation from the Cartesian Equation. Draw the rotated axis, then move a = 4 along the rotated y -axis and b = 2√6 3 along the rotated x-axis. If you enter a value, the higher th... | {
"domain": "istitutocomprensivoascea.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9883127409715956,
"lm_q1q2_score": 0.8148262326780249,
"lm_q2_score": 0.824461932846258,
"openwebmath_perplexity": 356.1735119431403,
"openwebmath_score": 0.816659271717071... |
### Interpolation Search Explained
If you have taken an introductory computer science course, you've probably seen the binary search algorithm - an algorithm to efficiently find the index of an item in a sorted array, if it exists. You might not have heard of interpolation search, however. Interpolation search is an a... | {
"domain": "ryanhmckenna.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9852713861502773,
"lm_q1q2_score": 0.8078174370668469,
"lm_q2_score": 0.8198933293122506,
"openwebmath_perplexity": 9639.77198396295,
"openwebmath_score": 0.2637558579444885,
"tags"... |
- 1 year, 5 months ago
Note that,
$\tan x = - \lim_{n \to \infty} \left( \dfrac{1}{x- \frac{\pi}{2}} + \dfrac{1}{x+ \frac{\pi}{2}} + \ldots + \dfrac{1}{x- (2n-1)\frac{\pi}{2}} + \dfrac{1}{x + (2n-1)\frac{\pi}{2}} \right)$
Also, by Glasser's Master Theorem (which can be proved using elementary methods by using the gr... | {
"domain": "brilliant.org",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9518632302488963,
"lm_q1q2_score": 0.8383983443917405,
"lm_q2_score": 0.8807970701552505,
"openwebmath_perplexity": 4471.129323603746,
"openwebmath_score": 0.9999955892562866,
"tags": ... |
python, python-3.x, combinatorics, math-expression-eval
for value in vals:
sys.stdout.write(value + '\t')
equation_vars_copy = copy.deepcopy(equation_vars)
for index in range(len(equation_vars_copy)):
equation_vars_copy[index] += " = " + vals[index]
exec(equation_vars_copy[index])
... | {
"domain": "codereview.stackexchange",
"id": 11500,
"lm_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, combinatorics, math-expression-eval",
"url": null
} |
c++, performance, beginner, strings
int (*same_class)(int) = nullptr;
std::vector<std::string> *current_vector = nullptr;
for (const auto& x: str) {
const unsigned char ux = x; // we need this for <cctype> functions
// is x in the same group as previous character?
if (!same_class || ... | {
"domain": "codereview.stackexchange",
"id": 29522,
"lm_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, beginner, strings",
"url": null
} |
planetary-ring, astrochemistry, saturn-rings
Additional information of E-ring came from the compositional profile of ice particles from Saturn’s moon Rhea, from a series of spectra recorded on Cassini’s Rhea flyby (R4) in 2013. No striking change in composition is observed but the ice grains had a varying size distrib... | {
"domain": "astronomy.stackexchange",
"id": 4840,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "planetary-ring, astrochemistry, saturn-rings",
"url": null
} |
discrete-signals, convolution, linear-systems
This is an alternating sequence and it does not converge. However, if it's possible to restrict the length of the input to be even for $n<0$, then the sum will be zero too...
Nevertheless, in order to uniquely specify $u[n]$ for $n<0$ a single sum is not enough. We must k... | {
"domain": "dsp.stackexchange",
"id": 8158,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "discrete-signals, convolution, linear-systems",
"url": null
} |
I'm currently teaching out of the 4th edition of Stewart's Galois Theory textbook. Stewart defines a ring to be what other authors might call a commutative ring with unity. The reason is simple: in this book, there is not much call for noncommutative rings, nor for rings without unity, and it gets old writing "commutat... | {
"domain": "stackexchange.com",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9465966717067253,
"lm_q1q2_score": 0.8045798913202781,
"lm_q2_score": 0.849971181358171,
"openwebmath_perplexity": 259.9114490915158,
"openwebmath_score": 0.8188384771347046,
"tags... |
file-system, email, perl, unix, status-monitoring
open(MAIL, "|/usr/sbin/sendmail -oi -t");
print MAIL << "EOF";
Content-Type: text/html
Subject: $subject
To: $to
From: $from
$message_body
\n\n
EOF
close(MAIL);
unlink $repFile;
} else {
exit;
}
The script is executed via SSH:
# ssh server "perl" < script.... | {
"domain": "codereview.stackexchange",
"id": 25160,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "file-system, email, perl, unix, status-monitoring",
"url": null
} |
quantum-mechanics, wavefunction, hilbert-space, born-rule
If we want a Hilbert space on which the canonical commutation relations
$[x_i,p_i] = \mathrm{i}\hbar$ hold, then the Stone-von Neumann theorem guarantees that any such space is equivalent to $L^2(\mathbb{R}^n)$, with position acting as multiplication and moment... | {
"domain": "physics.stackexchange",
"id": 41920,
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-mechanics, wavefunction, hilbert-space, born-rule",
"url": null
} |
electrochemistry, electrolysis
Title: Would electrolysis work with a conductive (but waterproof) divider between anode and cathode? Note I am not trying to "double fuel efficiency" in a car or something scamey like that. My purpose is to fill balloons with hydrogen and possibly power an HHO torch (also make it safer b... | {
"domain": "chemistry.stackexchange",
"id": 11732,
"lm_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, electrolysis",
"url": null
} |
often a particular event occurs in a fixed number of tries or trials. If a coin comes up heads you win 10, but if it comes up tails you win 0. Answer 2: There are three choices for the first letter and two choices for the second letter, for a total of . Mathematics | PnC and Binomial Coefficients. These outcomes are la... | {
"domain": "abroadexport.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9632305318133553,
"lm_q1q2_score": 0.8005823600015395,
"lm_q2_score": 0.8311430478583168,
"openwebmath_perplexity": 593.3967928978907,
"openwebmath_score": 0.7726367712020874,
"... |
c#, design-patterns, inheritance
Title: Dispose pattern - DisposableObject I am trying to make an universal implementation of IDisposable (as a base class):
public abstract class DisposableObject : IDisposable
{
private bool hasUnmanagedResources;
private bool baseDisposeManagedResourcesCalled;
private boo... | {
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"openwebmath_score": null,
"tags": "c#, design-patterns, inheritance",
"url": null
} |
Again, for the new set of {2,3,4,5} the average is 3.5 . Now, if the last integer is removed, the new average will again be = 3.5-0.5 = 3.
Similarly, for the same set {2,3,4,5,6}, if we remove the first integer from the given set, the average increases by 0.5 and so on and so forth.
Back to the problem:
From F.S 1, ... | {
"domain": "gmatclub.com",
"id": null,
"lm_label": "1. Yes\n2. Yes\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 1,
"lm_q1q2_score": 0.8519527963298947,
"lm_q2_score": 0.8519527963298947,
"openwebmath_perplexity": 2902.9624508058323,
"openwebmath_score": 0.6749594211578369,
"tags": null,
"url"... |
quantum-mechanics
Different effects in heterojunctions, where one of layers has finite thickness
Effects in external magnetic field (Landau levels reproduces mentioned dispersion law)
Heterojunctions are widely using in a lot of devices, so I assume it will be relatively easy to find something. | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-mechanics",
"url": null
} |
game, json, ios, swift, hangman
Title: Second attempt at Hangman in Swift I recently posted my Hangman game, and got some amazing feedback! The main thing suggested was to create a word generator that could read JSON files so that my hangman brain class didn't have to generate the word used on top of handling gameplay... | {
"domain": "codereview.stackexchange",
"id": 14848,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "game, json, ios, swift, hangman",
"url": null
} |
parsing, clojure, markdown
(defn- parse-link-text [linktext]
(let [[link title] (clojure.string/split (to-string linktext) #" " 2)]
(if (seq title)
{:url link :title (extract-link-title title)}
{:url link})))
(defn- match-link-impl [acc text type]
(when-let [[linkbody remaining :as body] (brackete... | {
"domain": "codereview.stackexchange",
"id": 6682,
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"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "parsing, clojure, markdown",
"url": null
} |
To be fair, the formula $$S_b^\prime= \sqrt{\frac{(n_1-1)S_1^2 + (n_2 -1)S_2^2}{n_1 + n_2 - 2}} = 34.093 \ne 34.029$$ is more reasonable. This is the formula for the 'pooled standard deviation' in a pooled 2-sample t test. If we may have two samples from populations with different means, this is a reasonable estimate o... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9787126488274565,
"lm_q1q2_score": 0.8942267709768439,
"lm_q2_score": 0.91367652400137,
"openwebmath_perplexity": 467.6740642626825,
"openwebmath_score": 0.8908621072769165,
"tags"... |
qt, rqt
My plugin.xml is the following:
<library path="lib/libcontrol_centre">
<class name="control_centre/MyPlugin" type="control_centre::MyPlugin" base_class_type="rqt_gui_cpp::Plugin">
<description>
Controls for toggling various rescueneer robot features.
</description>
<qtgui>
<label>Resc... | {
"domain": "robotics.stackexchange",
"id": 15797,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "qt, rqt",
"url": null
} |
electromagnetism, electrostatics, coordinate-systems, dipole, dipole-moment
Title: Displacing origin of dipole moment Short electrostatics question. Given that a dipole moment of a charge distribution is defined as $$P = \int r' \rho(r')d \tau '$$ where $r'$ is the position vector of the source charge, and $\rho$ is t... | {
"domain": "physics.stackexchange",
"id": 70705,
"lm_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, electrostatics, coordinate-systems, dipole, dipole-moment",
"u... |
java
Title: Breadth and Depth First Search in Java BFS and DFS in Java. Please give suggestions!!
Class Main {
public void bfs()
{
// BFS uses Queue data structure
Queue queue = new LinkedList();
queue.add(this.rootNode);
printNode(this.rootNode);
rootNode.visited = true... | {
"domain": "codereview.stackexchange",
"id": 3689,
"lm_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
} |
homework-and-exercises, newtonian-mechanics, classical-mechanics, forces, newtonian-gravity
Title: Computing the gravitational force on a planet in a particular system I have a system of four planets moving in a 2D plane. I'm trying to write some code (C++) to find the positions of these planets at time t=3. | {
"domain": "physics.stackexchange",
"id": 19962,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "homework-and-exercises, newtonian-mechanics, classical-mechanics, forces, newtonia... |
c, tree, file
btNode root = new_node(order, true); // creates the root of the new B-Tree
root.pos_in_disk = 0; // give the root a position in the file
tree->order = order; // give the tree it`s order
tree->root = root; // give th... | {
"domain": "codereview.stackexchange",
"id": 31159,
"lm_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, tree, file",
"url": null
} |
classical-mechanics, coordinate-systems, velocity, differentiation, notation
Title: Velocities - Equation 1.46 of Goldstein 3rd edition In his derivation of the Euler-Lagrange equations from D'Alembert's principle, Goldstein
uses the parametrization (equation 1.45')
$$\displaystyle{\vec{r_i}=\vec{r_i}(q_1,q_2, ..., q_... | {
"domain": "physics.stackexchange",
"id": 87553,
"lm_label": null,
"lm_name": null,
"lm_q1_score": null,
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "classical-mechanics, coordinate-systems, velocity, differentiation, notation",
"... |
ros, installation, ros-fuerte
Title: turtlebot simulator
Hi all , i'm trying to install turtlebot simuation on my fuerte
this error occurs
[Solved]
Edit 1 :
now trying to install turtlebot SDK by :
sudo apt-get update
after that
sudo apt-get install ssh ros-fuerte-turtlebot-robot
but that is the result
Originally... | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "ros, installation, ros-fuerte",
"url": null
} |
genetics, molecular-biology, molecular-genetics, human-genetics, genomics
Title: Do transposons usually jump from one chromosome to another? If it is usual occurrence, does it mean that my one gene can change its location from one chromosome to another? Yes of course; they are not like tandem duplications.
However, s... | {
"domain": "biology.stackexchange",
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"lm_q1_score": null,
"lm_q1q2_score": null,
"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "genetics, molecular-biology, molecular-genetics, human-genetics, genomics",
"url"... |
c, integer, bitwise
while (num != 0) {
res += (num & 0x1);
num >>= 1;
}
return res;
}
Other implementations
There are a wide variety of ways to count bits. You should read the wikipedia page on Hamming weight for starters. I'll briefly mention some here:
Removing one bit per loop
There is a... | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "c, integer, bitwise",
"url": null
} |
beginner, c, stack
if (top == NULL)
return '\0';
*pStack = top->next;
ret = top->data;
free(top);
return ret;
}
int main(void)
{
// ...
char openBrace = pop(&stack);
if (!compare(str[i], openBrace)
{
printf("\n Unbalanced Expression ... | {
"domain": "codereview.stackexchange",
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"openwebmath_score": null,
"tags": "beginner, c, stack",
"url": null
} |
# Thread: How many subspace in F2?
1. ## How many subspace in F2?
Hi, I have to find the number of subspaces of $\mathbb F^2$ where $\mathbb F$ is a finite field with $n$ elements.
I know there are the trivial subspaces.
I thought the subspaces may be the possible lines ( I mean the possible inclinations )
For exampl... | {
"domain": "mathhelpforum.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9914225140794153,
"lm_q1q2_score": 0.832531155422866,
"lm_q2_score": 0.8397339616560072,
"openwebmath_perplexity": 286.0248850870957,
"openwebmath_score": 0.9724882245063782,
"... |
of strips of equal width. Use this area of trapezoidal prism calculator to find the area by using length of the top, length of the bottom and height values of trapezoidal prism. If the width is narrow enough, each strip can be treated as a trapezium. Find more Mathematics widgets in Wolfram|Alpha. Answered: Geoff Hayes... | {
"domain": "danieledivittorio.it",
"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9828232914907945,
"lm_q1q2_score": 0.8035312333629373,
"lm_q2_score": 0.817574471748733,
"openwebmath_perplexity": 660.4936385685219,
"openwebmath_score": 0.8180414438247681,
"t... |
ros-melodic, ros-kinetic
Title: Can it be ROS master is dropping remote connections
Hi, I have RPi (Raspbian 9/kinetic) and a PC (bionic/melodic). They are connected directly via an Ethernet cable and dnsmasq. I would guess that there is no firewal, because (pi$ is the command line on Pi, pc$ is the command line on t... | {
"domain": "robotics.stackexchange",
"id": 31772,
"lm_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-melodic, ros-kinetic",
"url": null
} |
prop.test(c(3648, 2205), c(37128, 20337), cor=F)
2-sample test for equality of proportions
without continuity correction
data: c(3648, 2205) out of c(37128, 20337)
X-squared = 14.851, df = 1, p-value = 0.0001163
alternative hypothesis: two.sided
95 percent confidence interval:
-0.01540543 -0.00493134
sample estimates... | {
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"openwebmath_score": 0.4863791763782501,
"ta... |
matrix is said to be diagonally dominant if, for every row of the matrix, the magnitude of the diagonal entry in a row is larger than or equal to the sum of the magnitudes of all the other (non-diagonal) entries in that row. More precisely, the matrix A is diagonally dominant if For example, The matrix is diagonally do... | {
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"lm_q1_score": 0.9777138170582865,
"lm_q1q2_score": 0.8016210494908431,
"lm_q2_score": 0.8198933425148214,
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"openwebmath_score": 0.9217110872268677,
... |
1. Start with $(a,b,c,d)=(0,1,1,1)$.
2. *[Remark: We have $\frac ab<L<U\le \frac cd$, and $ad-bc=-1$, and any fraction between $\frac ab$ and $\frac cd$ has denominator $\ge b+d$]*$\quad$ Let $u\leftarrow a+c$, $v\leftarrow b+d$.
3. If $u<Lv$, let $a\leftarrow u$, $b\leftarrow v$ and go to step 2
4. If $u\ge Uv$, let $... | {
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"lm_q2_score": 0.8311430415844385,
"openwebmath_perplexity": 195.00150405780195,
"openwebmath_score": 0.9137800335884094,
"ta... |
slam, navigation, hector, hector-slam, hector-mapping
Originally posted by Stefan Kohlbrecher with karma: 24361 on 2013-05-16
This answer was ACCEPTED on the original site
Post score: 3
Original comments
Comment by AeroR on 2013-05-21:
Thank you for your answer! I looked at my transformation frames, and found out tha... | {
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"tags": "slam, navigation, hector, hector-slam, hector-mapping",
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} |
navigation, geometry-msgs
Title: Units for cmd_vel
I'm implementing my own base_controller to listen on /cmd_vel for motion commands. I'm aware of the REP103 units convention document, but I haven't found anything on what the units in a geometry_msgs/Twist are. I am assuming it's m/s and rad/s?
Originally posted by ... | {
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"tags": "navigation, geometry-msgs",
"url": null
} |
python, performance, python-3.x
Code style
Overall, I think code is not easily readable. I had to read it a few times to get a feeling of what you are trying to do.
return(result) does not need brackets.
I think else: if success: if select and not could be replaced by simple elif
I am not sure what baris means ... | {
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beginner, php, game, random
Paper & Paper === Draw
Paper & Rock ==== Paper wins
Paper & Scissor = Scissor wins
Scissor & Scissor = Draw
Scissor & Rock == Rock wins
Scissor & Paper = Scissor wins
-->
</body>
</html> I personally find the fun part of programming to be the challenge of trying to find the leanest, most d... | {
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python, combinatorics
def merge_decoupled_permutation(decoupled):
"""
From [[1,3], [2,4], [3,5], [4,2], [5,1]]
to [[1, 3, 5], [2, 4]]
"""
ans = []
while len(decoupled):
index_next = [k[0] for k in decoupled[1:]].index(decoupled[0][-1]) + 1
decoupled[0].append(decoupled[index_n... | {
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"tags": "python, combinatorics",
"url": null
} |
homework-and-exercises, cosmology, big-bang, cosmological-inflation, estimation
Title: When did the universe become lighter than water at 1 g/cm3
Did the universe become lighter than water before light could travel through it?
What temperature was it at the time where matter was roughly 1g/cm3?
Did the universe bec... | {
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... |
# What is $Var[b]$ in multiple regression?
Assume a linear regression model $$y=X\beta + \epsilon$$ with $$\epsilon \sim N(0,\sigma^2I)$$ and $$\hat y=Xb$$ where $$b=(X'X)^{-1}X'y$$. Besides $$H=X(X'X)^{-1}X'$$ is the linear projection from the response space to the span of $$X$$, i.e., $$\hat y=Hy$$.
Now I want to c... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9843363499098282,
"lm_q1q2_score": 0.8405373623819336,
"lm_q2_score": 0.8539127529517043,
"openwebmath_perplexity": 322.76972866668586,
"openwebmath_score": 0.9912280440330505,
"ta... |
c#, performance, algorithm
counter3++;
SizeChangedEventHandler act = (Object o, SizeChangedEventArgs args) =>
{
BindingOperations.GetBindingExpressionBase(l, Line.X1Property).UpdateTarget();
Binding... | {
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• I think you meant $X:=G/H$, since $[G:H]$ usually denotes the index of $H$ in $G$, so it's a positive integer number, not a set.
– user750041
Apr 17 '20 at 13:34
• Yes! exactly @user750041 thank you
– user368312
Apr 17 '20 at 14:32
In general, if we are given an action of a group $$G$$ on a set $$X$$, $$G\times X\to... | {
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"openwebmath_score": 1.0000100135803223,
"tag... |
balance, quadcopter
Title: How to balance a flying quadcopter? I'm using my own code to create a quadcopter robot. The hardware part is done but I need to balance the copter.
The original video demonstrating the problem was shared via dropbox and is no longer available.
I have tried to play with the speed of each mo... | {
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"tags": "balance, quadcopter",
"url": null
} |
java, comparative-review, rest, spring
The way the mapper is implemented is an invitation to SRP violations. You have a mapper for a type, and the mapper is responsible for converting that type to whatever other object type there is a need for. What happens if you need to create a QuestionSummary object? By the way th... | {
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"openwebmath_score": null,
"tags": "java, comparative-review, rest, spring",
"url": null
} |
c++, beginner, opengl, virtual-machine
Use fixed-width integer types (in particular std::uint16_t instead of unsigned short and std::uint8_t instead of unsigned char). These are found in header cstdint or cintttypes. If those headers aren't available, the C versions are stdint.h and inttypes.h, and if those aren't av... | {
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"tags": "c++, beginner, opengl, virtual-machine",
"url": null
} |
homework-and-exercises, newtonian-mechanics, forces, newtonian-gravity, friction
Title: Forces: why are the theta's equal? I found this figure in my physics book, the task says that the incline got a angle of theta. How do figure out that the gravity and the y-axis got the same angle as the incline? There is no explan... | {
"domain": "physics.stackexchange",
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"tags": "homework-and-exercises, newtonian-mechanics, forces, newtonian-gravity, friction",... |
newtonian-mechanics, forces
Title: Force exerted on ceiling by a simple mecahnical system I have a simple static mechanical system, but I reach a conclusion that seems to me counter-intuitive:
There is a pulley fixed to the ceiling and there is a weight fixed to a rope which goes through the pulley and is fixed to a ... | {
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"tags": "newtonian-mechanics, forces",
"url": null
} |
multithreading, go, http, benchmarking
Title: Golang HTTP requests I'm beginning to learn about Golang and I would like to have some advice about the following program.
package main
import (
"fmt"
"net/http"
"time"
)
const BenchmarkTry = 1000
type PageBenchmark struct {
url string
time int64 //... | {
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"url": null
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javascript, game, chat, websocket
};
/**
* Sends an invite to play to another user.
* @returns {undefined}
* @example {"command":"inviteRequest","id":15,"name":"HelloWorld","gameType":"Mythos"}
*/
const sendInvite = function() {
logDebugMessage("sendInvite called");
const s... | {
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root, √) takes the output (4), and gives the original input: √(4) = 2. As you can see from the work below, when you are trying to solve a quadratic equations in the form of a x 2 + b x + c. Condition of complex roots for equation with real. (The symbol is also called the radical sign). So, in this example we get the nu... | {
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"lm_q2_score": 0.8267117898012105,
"openwebmath_perplexity": 471.26140074529457,
"openwebmath_score": 0.7266640067100525,
"tags": n... |
arduino, rosserial, ros-hydro, ubuntu
Comment by khitrir on 2015-03-29:
I ended up unistalling roslint and cmake_modules manually, restarting and running apt-get update, and then manually installing again. Now it installed perfectly. I'm unsure why using apt-get install --reinstall and the full ros-desktop reinstalls... | {
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kinetics
Yes. But the results will be the same. I will illustrate with the case you have given, considering that: (1) there is no carbon dioxide initially, and (2) carbon monoxide is the limiting reactant.
\begin{align}
\ce{2CO(g) + O2(g) -> 2CO2(g)} \quad & \quad \ce{CO(g) + 1/2O2(g) -> CO2(g)}
\tag{R1/R2}
\end{a... | {
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python, python-3.x, aws-cdk
Thank you so much in advanced and a very happy new year! In general, remember that one function (or class), one responsibility is a good rule of thumb when designing software. Furthermore, in general, variables should be declared as late as possible and as close to their site of use as poss... | {
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# Does this series converge or diverge?
Let us consider the series $$\sum_{n=1}^\infty \frac {\{\sqrt n\}-\frac 1 2} n$$, where $$\{\cdot\}$$ denotes the fractional part of a real number. On the one hand,
SumConvergence[(FractionalPart[Sqrt[n]] - 1/2)/n, n]
False
On the other hand,
NSum[(FractionalPart[Sqrt[n]] -... | {
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"ta... |
It may be that this exercises is intended to illustrate the technique for
subsequent application in this manner, so if the original poster has been
asker to reduce the left-hand side to the identity matrix we should respect
that.
RonL
10. Originally Posted by CaptainBlack
Stopping when the matrix is upper-triangular ... | {
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"openwebmath_perplexity": 972.7390572843666,
"openwebmath_score": 0.8068263530731201,
"tag... |
java, performance, linked-list
case 5:System.out.println("\nDISPLAY LIST\n");
System.out.println("\nList\n");
if(!ll.isEmpty())
ll.displayList();
else
System.out.println("LIST EMPTY");
... | {
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By irreducibility, for any $i$, there is an $m$ with $M_{i k^*}^m>0$. In fact, if $M$ is $N\times N$ matrix, and $i\neq k^*$ then we can assume $m<N$. (Take the shortest path from $i$ to $k^*$ with positive "probability").
Since $M_{i k}^m$ puts positive weight on the index $k=k^*$, we have $$r^N_i=\sum_k M^m_{i k}\ r^... | {
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"lm_q1_score": 0.9740426465697489,
"lm_q1q2_score": 0.8409802470930584,
"lm_q2_score": 0.8633916082162402,
"openwebmath_perplexity": 226.67669976591728,
"openwebmath_score": 0.9997153878211975,
"ta... |
# Solving the Differential equation $y' = y \tan(x) + \cot(x)$
I am asked to solve the following differential equation:
$$y' = y \tan(x) + \cot(x)$$
What I have so far is
\begin{align*} y' - (\tan x) y &= \cot(x)\\ \\ I &= e^{\int - \tan(x) dx} = \cos(x)\\ \\ \cos(x) \left( y' - y \tan(x) \right) &= \cos(x) \cot(x)... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9848109516378093,
"lm_q1q2_score": 0.8935310121507709,
"lm_q2_score": 0.9073122213606241,
"openwebmath_perplexity": 2702.3522997144087,
"openwebmath_score": 1.0000100135803223,
"ta... |
start there. A 60-lb boulder is suspended over a roof by a 40-ft cable that weighs 10 lb/ft. f 10 points g Solve for x without using a calculating utility. sin θ csc θ = 1. Free math lessons and math homework help from basic math to algebra, geometry and beyond. TRIGONOMETRIC INTEGRALS Integrals of the form Z cos(mx)co... | {
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"lm_q1_score": 0.9736446517423792,
"lm_q1q2_score": 0.8236473354397329,
"lm_q2_score": 0.8459424431344437,
"openwebmath_perplexity": 2248.0482895699984,
"openwebmath_score": 0.823053717613220... |
performance, php, algorithm, drupal
batch_set($batch);
}
csvImporter_create_nodes use save_node to create nodes. In this foreach, I divide $regs (which contain my data to import) in package of 100 elements and call the csvImporter_create_nodes function. I need to make this foreach faster and more efficient.
I have ... | {
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"openwebmath_score": null,
"tags": "performance, php, algorithm, drupal",
"url": null
} |
pytorch
Title: Classifier using pytorch I'm writing a demo code to predict a 2-class classification for a dataset of 10-D inputs. Below, function _data generates the data:
import math
import numpy as np
import torch
import torch.nn as nn
import torch.optim as optim
def _data(dimension, num_examples):
# Create a ... | {
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} |
quantum-field-theory, operators, unitarity, quantum-states, normalization
PS: I am well aware of this question, but I wouldn't like to work it backwards (at least, I was not able to understand like that). 2)
Say that a Lorentz boost on $|p\rangle$ is given by an operator $A$. If $|p\rangle$ was normalised to begin wit... | {
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"tags": "quantum-field-theory, operators, unitarity, quantum-states, normalization",
"url... |
field-theory, definition, solitons
Envelope Solitons : Solitary-wave descriptions of the envelopes of waves, such as those that arise from the propagation of modulated plane waves in a dispersive nonlinear medium with an amplitude-dependent dispersion relation.
Gap solitons: Solitary waves that occur in finite gaps in... | {
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"tags": "field-theory, definition, solitons",
"url": null
} |
java
Title: Swapping every letter with every other letter in a string I am doing a project and I have come up with some code to swap every letter with every other letter in a string, only the project was to be "efficient as possible".
Example:
"rya" = yra, ray, ayr.. etc
I understand exactly how the code works. I wou... | {
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} |
c++, object-oriented, opengl
if (oneValue)
{
if (floatCast)
{
data = uniform->GetData();
GLCall(glUniform1f(*(m_UniformLocations + locationOffset), *((float*)data)));
}
else if (doubleCast)
{
data = uniform->GetData();
GLCall... | {
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\varphi(d) 2^{n/d}$$ which is $$\frac{1}{2n} \sum_{d|n,\;d\;\mathrm{odd}} \varphi(d) 2^{n/d}.$$ This yields the sequence $$1, 1, 2, 2, 4, 6, 10, 16, 30, 52, 94, 172, 316, 586, 1096, \\ 2048, 3856, 7286,\ldots$$ which is OEIS A000016 where additional material awaits. I found the OEIS entry by using a simple total enumer... | {
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"tag... |
c++, object-oriented, socket, callback, tcp
connected_ = true;
if (connectfunc_) {
connectfunc_();
}
}
// Read event
if (events.lNetworkEvents & FD_READ)
{
// No need to keep reading, will get a new event for any data not read
... | {
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"tags": "c++, object-oriented, socket, callback, tcp",
"url": null
} |
All that is needed for the proof is the elementary inequality $$\lfloor x\rfloor \geq \dfrac{x}{2} \text{ for x \geq 1}$$
Note that the $\text{lcm}(\{1,2,\ldots,n\}) = \exp(\psi(n))$, where $\psi(n)$ is the second Chebyshev function. Hence, we want to prove that $$\exp(\psi(n)) \geq \exp \left( \log(\sqrt{n}) \pi(n)\r... | {
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"lm_q1q2_score": 0.8161939428395648,
"lm_q2_score": 0.831143054132195,
"openwebmath_perplexity": 335.3279428396953,
"openwebmath_score": 0.9163510203361511,
"tags... |
In [6]:
batch_size = 10
for X, y in data_iter(batch_size, features, labels):
print(X, y)
break
[[ 0.74844444 -2.7521858 ]
[-1.5366337 -1.015936 ]
[ 0.73648626 0.5670942 ]
[-0.5451464 1.0648695 ]
[-0.1461925 -0.3182019 ]
[-0.38307324 0.60577285]
[ 1.1499298 0.47734314]
[ 1.0132014 0.9695031 ]
[-0.4295941 -... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9688561676667173,
"lm_q1q2_score": 0.8156079704397082,
"lm_q2_score": 0.8418256472515683,
"openwebmath_perplexity": 1184.6354710570647,
"openwebmath_score": 0.6346011161804199,
"tags": null,
... |
gazebo-model
Title: When trying to contribute a model I get "abort: no username supplied (see "hg help config")"
when I use the
hg commit
command it gives me that error... How do I set a username?
Originally posted by Blui on Gazebo Answers with karma: 5 on 2016-07-01
Post score: 0
You can either specify a user for... | {
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"openwebmath_score": null,
"tags": "gazebo-model",
"url": null
} |
navigation, odometry, gmapping
Title: Getting map -> odom transform without using Gmapping
I need to get the map -> odom transform which is the pose of the robot in the map frame.
During the execution of my program, I serve a built map to the map server, so I fear that if I have gmapping running with the map server t... | {
"domain": "robotics.stackexchange",
"id": 13324,
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "navigation, odometry, gmapping",
"url": null
} |
black-holes
Title: How about destroying a black hole? Can we destroy a black hole? I know it is pretty powerful and hardcore stuff but there should be a way even theoretically as we know know nothing is perfect in this universe as it exist due to imperfection. Then how could a black hole be so perfect, so near to god ... | {
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"lm_q2_score": null,
"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "black-holes",
"url": null
} |
cosmology, universe
Title: Does the existence of irrational numbers like pi prove that infinity exist? I saw a debate about the universe and how it came about. Some debaters argued that there has to be a beginning because infinity cannot possibly exist. Then someone replied that the fact that some calculations give in... | {
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"tags": "cosmology, universe",
"url": null
} |
• thx for the input. Could you elaborate on "$\frac{1}{N}<(\frac{\epsilon}{M})^{1/p}$"? – rei Aug 7 '17 at 5:51
• Do you mean to ask why we know that such an $N$ exists? It is a consequence of the fact that $$\left(\frac{M}{\varepsilon}\right)^{1/p}$$ is a fixed real number. Thus we can choose a natural number $N$ so l... | {
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"lm_q2_score": 0.8397339736884711,
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"openwebmath_score": 0.9497394561767578,
"tag... |
# Find all $(a,b) \in \Bbb Z^2$ such that $b \equiv 2a \pmod 5$ and $28a+10b=26$
I'm stuck with this exercise:
Find all $(a,b) \in \Bbb Z^2$ such that $b \equiv 2a \pmod 5$ and $28a+10b=26$
It's from my algebra class, we are looking into diophantic and congruence equations.
I started by looking to the $(a,b)$ that ... | {
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"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9820137926698567,
"lm_q1q2_score": 0.8385540993098386,
"lm_q2_score": 0.8539127510928476,
"openwebmath_perplexity": 239.5404308128294,
"openwebmath_score": 0.9068819284439087,
"tag... |
c, linked-list, console, database, edit-distance
if (c)
{
return c;
}
return strcmp(a->record->first_name, b->record->first_name);
}
/*******************************************************************************
* Sorts the telephone records. The last name of each record is the primary *
* ... | {
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containing an interval on the real line such as $[a,b], (a,b], [a,b),$ or $(a,b)$, But as soon as we figure out the size Arrange $\Q^+$ in a set Ais nite, and determine its cardinality is said! Elements of the set: … cardinality of the symmetyofthissituation, wesaythatA and B have the same cardinality as (! Countable se... | {
"domain": "gingerhillcreations.com",
"id": null,
"lm_label": "1. YES\n2. YES\n\n",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9883127409715955,
"lm_q1q2_score": 0.868871940560683,
"lm_q2_score": 0.8791467564270272,
"openwebmath_perplexity": 368.5193643402489,
"openwebmath_score": 0.857798337936401... |
c++, performance, beginner, c++11
begin = clock();
for (int i = 0; i < l; i++) {
que.push_back(i);
}
std::cout << "std::deque: " << clock() - begin << '\n';
begin = clock();
for (int i = 0; i < l; i++) {
que.emplace_back(i);
}
std::cout << "std::deque (emplace): " << clock(... | {
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"tags": "c++, performance, beginner, c++11",
"url": null
} |
So, for example, $S_4$ is a group of order $24$, and every entry in its Cayley table (a Latin square of order $24$) belongs to some $2 \times 2$ subsquare, some $3 \times 3$ subsquare, some $4 \times 4$ subsquare, and so on for the other subgroup sizes.
Non-group examples can be formed by a direct product construction... | {
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"openwebmath_score": 0.7192240357398987,
"tags... |
The figures illustrate how the multidimensional data interpolation scheme work for pointwise defined functions over scattered data. Nearest neighbors give constant values for each voronoi triangle whilst Shepard-based algorithms provide continuous surfaces.
## compwater.was
This example shows an extension of the exam... | {
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"lm_q1_score": 0.9770226260757067,
"lm_q1q2_score": 0.8488634251619881,
"lm_q2_score": 0.8688267830311354,
"openwebmath_perplexity": 4510.7728224707935,
"openwebmath_score": 0.5709027051925659,
"tags": ... |
arduino, control, pid
Title: How do you design Quadcopter PID algorithm? Just to give a bit a context, here are the equations I'm using for the Angular accelerations.
φ** =(1/Jx)τφ
and
θ** =(1/Jy)τθ
So my plant gains would be
φ**/τφ =(1/Jx) along x axis
and
θ**/τθ =(1/Jy) along y axis
The basic PID structure is
Gain... | {
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"openwebmath_score": null,
"tags": "arduino, control, pid",
"url": null
} |
astrophysics, asteroids, natural-satellites
$$M = \frac{4}{3} \pi \rho R^3$$
$$a = \frac{4}{3} \pi G \rho R$$
So
$$t = \sqrt{\frac{3f}{2\pi G \rho}}$$
For spherical bodies of the same density with cliffs of heights as a fixed fraction of radius, the time it takes to fall down the cliff is independent of the size of t... | {
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"tags": "astrophysics, asteroids, natural-satellites",
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} |
If you write "L" for lose and "W" for win you can see that the problem, is the same as 'In how many ways can you write 2 "W"s and 3 "L"s?'
If you imagine that all of the "L" are labeled, say "1", "2", "3", and all of the "W" are labeled "1", "2", then you have 5 distinguishable objects. There are 5! ways of arranging ... | {
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"lm_q1_score": 0.9848109507462226,
"lm_q1q2_score": 0.8350879400057769,
"lm_q2_score": 0.847967764140929,
"openwebmath_perplexity": 813.8743822674653,
"openwebmath_score": 0.6295493245124817,
"tags... |
c++, c++11, opengl
GLShaderProgram &operator=(GLShaderProgram &&other)
{
programId_ = other.programId_;
other.programId_ = 0;
if (other.programId_ != 0) {
glDeleteProgram(other.programId_);
}
return *this;
}
Look closely to it in isolation for a few seconds. Do you realize the bug? other... | {
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"openwebmath_score": null,
"tags": "c++, c++11, opengl",
"url": null
} |
The desired NEW coordinate system X' is itself X5. The desired total rotational matrix is R.
X' = R . X
R = R5 . R4 . R3 . R2 . R1
The matrices are attached to this comment. Make sure you extract the zip file first then click the html file.
The derivation of the final total rotational matrix is kind of complicated. I... | {
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"lm_q1_score": 0.982557512709997,
"lm_q1q2_score": 0.8390183887851391,
"lm_q2_score": 0.8539127510928476,
"openwebmath_perplexity": 807.1589088161771,
"openwebmath_score": 0.7241307497024536,
"tags... |
• The number of conjugates of $\;\alpha\in K\;$ ( over $\;F\;$ ) is the number of different roots of the minimal polynomial of $\;\alpha\;$ in $\;F[x]\;$ , which is $\;[F(\alpha):F]=\;$ the degree of the polynomial mentioned above. – DonAntonio May 22 '17 at 22:16
• @DonAntonio That is more or less the OP's argument in... | {
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"lm_q1_score": 0.9873750477464142,
"lm_q1q2_score": 0.8372621983285994,
"lm_q2_score": 0.8479677506936878,
"openwebmath_perplexity": 152.02036993815992,
"openwebmath_score": 0.9048479795455933,
"ta... |
radio-astronomy, data-analysis, event-horizon-telescope
So we collected five petabytes of data during that time... and a little less than a petabyte was for M87... but actually what we use for imaging; we don’t work with the petabytes of data.
This is reduced down through a process of correlation and a calibration sta... | {
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"tags": "radio-astronomy, data-analysis, event-horizon-telescope",
"url": null
} |
ros, navigation, dwa-local-planner
Which means the goal cost function(goal_costs_) outputs negative value.
if path_distance_bias is set to be zero only, other two parameters are kept unchanged, the robot doesn't move. The debug information is
[DEBUG] [1518411651.529508502, 662.150000000]: Velocity 0.142, 0.000, 1.000 ... | {
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"tags": "ros, navigation, dwa-local-planner",
"url": null
} |
php, sql, mysql, mysqli, sql-injection
$_POST["termsandconditions"]
I assume this returns a 1 if it has been checked?
Any other code highlighted earlier to be redundant has been removed
Some basic rules for username and password validation have been incorporated
The below code uses OOP methodology
Error messages are... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "php, sql, mysql, mysqli, sql-injection",
"url": null
} |
quantum-field-theory, field-theory, perturbation-theory, klein-gordon-equation, wick-theorem
Title: Why does the 3-point function of a real scalar field vanish? $$\langle0\lvert T\hat\phi(x_1)\hat\phi(x_2)\hat\phi(x_3)\rvert0\rangle$$
I'm looking for an intuition to it, if not an actual interpretation. Otherwise, I kn... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "quantum-field-theory, field-theory, perturbation-theory, klein-gordon-equation, wi... |
# Microcontinuous vs Continuous
I've been studying infinitesimals and came upon the idea of uniformly microcontinuous functions. My question is: if a function $f^*: \mathbb{R}^* \to \mathbb{R}^*$ the natural extension of $f: \mathbb{R} \to \mathbb{R}$ is microcontinuous on $A\subset\mathbb{R}$ does that imply that it ... | {
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"id": null,
"lm_label": "1. Yes\n2. Yes",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9637799462157138,
"lm_q1q2_score": 0.8424181122762855,
"lm_q2_score": 0.8740772368049822,
"openwebmath_perplexity": 296.1435922155849,
"openwebmath_score": 0.9396055936813354,
"tag... |
quantum-field-theory, gauge-theory, feynman-diagrams, representation-theory, yang-mills
Title: Yang-Mills scattering amplitude calculation in Peskin and Schroeder I'm studying section 16.1 of Peskin and Schroeder on quantization of gauge theory, on page 509, we have the expression
$$\tag{16.14}iM^{\mu\nu}_{1,2}\epsilo... | {
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"id": 91416,
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"lm_q2_score": null,
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"tags": "quantum-field-theory, gauge-theory, feynman-diagrams, representation-theory, yang-... |
# What is the truth table for demorgan's law?
From Demorgan's law:
$(A \cup B)^c = A^c \cap B^c$
I constructed the truth table as follows:
$$\begin{array}{cccccc|cc} x\in A & x \in B & x \notin A & x \notin B & x \in A^c & x \in B^c & x\notin A \text{ or } x \notin B & x \in A^c \text{ and } x \in B^c & \\ \hline T... | {
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"id": null,
"lm_label": "1. YES\n2. YES",
"lm_name": "Qwen/Qwen-72B",
"lm_q1_score": 0.9787126475856414,
"lm_q1q2_score": 0.886703697656327,
"lm_q2_score": 0.9059898222871763,
"openwebmath_perplexity": 414.3442369745594,
"openwebmath_score": 0.8203661441802979,
"tags... |
python, demodulation, scipy, fsk
The strong double frequency component can be used for symbol timing recovery for the case of the symbols no being coherent to the sample clock. If they are coherent then symbol timing recovery is simply aligning the sample edge to a start of a symbol which can easily done with a simple... | {
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"tags": "python, demodulation, scipy, fsk",
"url": null
} |
discrete-signals, python, phase, radar, frequency-modulation
``` You are off in your approach. First things first, however:
For example: say the delay corresponds to 37.465 samples. I can't shift the elements by this much, but I can shift them by 38 samples and say that, in each element, the point of the waveform at ... | {
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"openwebmath_perplexity": null,
"openwebmath_score": null,
"tags": "discrete-signals, python, phase, radar, frequency-modulation",
"url": null
} |
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