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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 can I sort arrays and data in PHP?
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12 Answers
12
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How do write IF ELSE statement in a MySQL query
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150
You probably want to use a CASE expression.
They look like this:
SELECT col1, col2, (case wh...
Double vs. BigDecimal?
... has a certain precision. Working with doubles of various magnitudes (say d1=1000.0 and d2=0.001) could result in the 0.001 being dropped alltogether when summing as the difference in magnitude is so large. With BigDecimal this would not happen.
The disadvantage of BigDecimal is that it's slower, a...
A weighted version of random.choice
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312
Since version 1.7.0, NumPy has a choice function that supports probability distributions.
from...
Initialising an array of fixed size in python [duplicate]
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11 Answers
11
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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];/...
How to initialize an array's length in JavaScript?
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18 Answers
18
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How to catch integer(0)?
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164
That is R's way of printing a zero length vector (an integer one), so you could test for a bei...
Comparing numbers in Bash
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931
In bash, you should do your check in arithmetic context:
if (( a > b )); then
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fi
F...