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Convert an image to grayscale in HTML/CSS
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731
Support for CSS filters has landed in Webkit. So we now have a cross-browser solution.
img...
CSS triangle custom border color
...atibility. I am trying to have the triangle have a white background with a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far:
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How do I get indices of N maximum values in a NumPy array?
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16 Answers
16
Active
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Find the max of two or more columns with pandas
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185
You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.Data...
How many double numbers are there between 0.0 and 1.0?
...or example, that's the number of distinct doubles between 0.5 included and 1.0 excluded, and exactly that many also lie between 1.0 included and 2.0 excluded, and so forth.
Counting the doubles between 0.0 and 1.0 is harder than doing so between powers of two, because there are many powers of two i...
Two-dimensional array in Swift
...ments):
// 2 dimensional array of arrays of Ints set to 0. Arrays size is 10x5
var arr = Array(count: 3, repeatedValue: Array(count: 2, repeatedValue: 0))
// ...and for Swift 3+:
var arr = Array(repeating: Array(repeating: 0, count: 2), count: 3)
Change element at position
arr[0][1] = 18
OR
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How do you make an array of structs in C?
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107
#include<stdio.h>
#define n 3
struct body
{
double p[3];//position
double v[3];/...
Fastest way to reset every value of std::vector to 0
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edited Apr 21 '17 at 9:20
Qix - MONICA WAS MISTREATED
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From ND to 1D arrays
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Use np.ravel (for a 1D view) or np.ndarray.flatten (for a 1D copy) or np.ndarray.flat (for an 1D iterator):
In [12]: a = np.array([[1,2,3], [4,5,6]])
In [13]: b = a.ravel()
In [14]: b
Out[14]: array([1, 2, 3, 4, 5, 6])
Note that ravel() ret...