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Why is MATLAB so fast in matrix multiplication?
...nd matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied.
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How to create a loop in bash that is waiting for a webserver to respond?
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10
The use of backticks ` ` is outdated. Use $( ) instead.
– Serge Stroobandt
Apr 18 '14 at 15:37
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ValueError : I/O operation on closed file
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edited May 19 at 16:30
Boris
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answered Sep 2...
How to save a BufferedImage as a File
... Werner Kvalem VesteråsWerner Kvalem Vesterås
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Format string, integer with leading zeros
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Use the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros.
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Using app.configure in express
...no difference at all.
http://expressjs.com/api.html#app.configure
Update 2015:
@IlanFrumer points out that app.configure is removed in Express 4.x. If you followed some outdated tutorials and wondering why it didn't work, You should remove app.configure(function(){ ... }. Like this:
var express =...
How to work with complex numbers in C?
...ard Library of Complex Numbers */
int main() {
double complex z1 = 1.0 + 3.0 * I;
double complex z2 = 1.0 - 4.0 * I;
printf("Working with complex numbers:\n\v");
printf("Starting values: Z1 = %.2f + %.2fi\tZ2 = %.2f %+.2fi\n", creal(z1), cimag(z1), creal(z2), cimag(z2));
dou...
Adding a legend to PyPlot in Matplotlib in the simplest manner possible
...ll legend(loc='upper left').
Consider this sample (tested with Python 3.8.0):
import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 20, 1000)
y1 = np.sin(x)
y2 = np.cos(x)
plt.plot(x, y1, "-b", label="sine")
plt.plot(x, y2, "-r", label="cosine")
plt.legend(loc="upper left")
plt.y...
fancybox - d.onCleanup is not a function
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309
You forgot to add the CSS of fancybox. Once you include it everything should work fine.
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How do I change column default value in PostgreSQL?
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answered Jan 20 '11 at 9:28
Silver LightSilver Light
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