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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
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App Inventor 2 UrsPahoMqttClient 拓展 - 物...
How do I get user IP address in django?
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edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Jan 3 '11 at 4:08
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A more useful statusline in vim? [closed]
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edited May 9 '16 at 21:49
go2null
1,32011 gold badge1414 silver badges1616 bronze badges
answered ...
Convert a 1D array to a 2D array in numpy
I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this:
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Why should hash functions use a prime number modulus?
...ong time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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How can I pad a value with leading zeros?
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72 Answers
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How do I write a short literal in C++?
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82
((short)2)
Yeah, it's not strictly a short literal, more of a casted-int, but the behaviour is...
Adding a legend to PyPlot in Matplotlib in the simplest manner possible
...):
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.ylim(-1.5, 2.0)
plt.show()
Slightly modified from this tutorial: http://ja...
Bootstrap 3 offset on right not left
...bout filling blank columns, just make sure they don't add up to more than 12.
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<div class="container">
<div class="row">
<div class="col-xs-3 col-xs-offset-9">
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How to convert an array of strings to an array of floats in numpy?
...e's a better way. Use astype().
import numpy as np
x = np.array(['1.1', '2.2', '3.3'])
y = x.astype(np.float)
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