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How do you extract a column from a multi-dimensional array?
...
>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A
array([[1, 2, 3, 4],
[5, 6, 7, 8]])
>>> A[:,2] # returns the third columm
array([3, 7])
See also: "numpy.arange" and "reshape" to allocate memory
Example: (Allocating a ar...
How do I create an HTML table with a fixed/frozen left column and a scrollable body?
...table {
border-collapse: separate;
border-spacing: 0;
border-top: 1px solid grey;
}
td, th {
margin: 0;
border: 1px solid grey;
white-space: nowrap;
border-top-width: 0px;
}
div {
width: 500px;
overflow-x: scroll;
margin-left: 5em;
overflow-y: visible;
pad...
Function for Factorial in Python
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192
Easiest way is to use math.factorial (available in Python 2.6 and above):
import math
math.fa...
Error in plot.new() : figure margins too large, Scatter plot
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165
Every time you are creating plots you might get this error - "Error in plot.new() : figure mar...
Where to store global constants in an iOS application?
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11 Answers
11
Active
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Why does Double.NaN==Double.NaN return false?
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139
NaN means "Not a Number".
Java Language Specification (JLS) Third Edition says:
An operat...
How to delete a cookie?
...="+path:"")+
((domain)?";domain="+domain:"") +
";expires=Thu, 01 Jan 1970 00:00:01 GMT";
}
}
You can define get_cookie() like this:
function get_cookie(name){
return document.cookie.split(';').some(c => {
return c.trim().startsWith(name + '=');
});
}
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How to print to console using swift playground?
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133
In Xcode 6.3 and later (including Xcode 7 and 8), console output appears in the Debug area at ...