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Why is isNaN(null) == false in JS?
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I believe the code is trying to ask, "is x numeric?" with the specific case here of x = null. The function isNaN() can be used to answer this question, but semantically it's referring specifically to the value NaN. From Wikipedia for NaN:
NaN (Not a Number) is...
How can the Euclidean distance be calculated with NumPy?
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There's a function for that in SciPy. It's called Euclidean.
Example:
from scipy.spatial import distance
a = (1, 2, 3)
b = (4, 5, 6)
dst = distance.euclidean(a, b)
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Fastest sort of fixed length 6 int array
...ort. If I were betting, I'd put my money on insertion sort based on past experience.
Do you know anything about the input data? Some algorithms will perform better with certain kinds of data. For example, insertion sort performs better on sorted or almost-sorted dat, so it will be the better cho...
Set Colorbar Range in matplotlib
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Using vmin and vmax forces the range for the colors. Here's an example:
import matplotlib as m
import matplotlib.pyplot as plt
import numpy as np
cdict = {
'red' : ( (0.0, 0.25, .25), (0.02, .59, .59), (1., 1., 1.)),
'green': ( (0....
Can someone explain the right way to use SBT?
...ies or ensure you are not missing required dependencies.
As a simple example, right now, I'm starting a brand new project. I want to use the latest features of SLICK and Scala and this will probably require the latest version of SBT. What is the sane point to get started, and why?
I think the...
Random / noise functions for GLSL
As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own ...
How to easily initialize a list of Tuples?
...e "Item1" and "Item2", you can do:
var tupleList = new List<(int Index, string Name)>
{
(1, "cow"),
(5, "chickens"),
(1, "airplane")
};
or for an array:
var tupleList = new (int Index, string Name)[]
{
(1, "cow"),
(5, "chickens"),
(1, "airplane...
Difference between application/x-javascript and text/javascript content types
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text/javascript is obsolete, and application/x-javascript was experimental (hence the x- prefix) for a transitional period until application/javascript could be standardised.
You should use application/javascript. This is doc...
Literal suffix for byte in .NET?
...ike floats or doubles? I mean like 5f and 5d . Sure I could write byte x = 5 , but that's a bit inconsequential if you use var for local variables.
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How to create a GUID/UUID in Python
...library/uuid.html
Python 3:
https://docs.python.org/3/library/uuid.html
Example (working on 2 and 3):
>>> import uuid
>>> uuid.uuid4()
UUID('bd65600d-8669-4903-8a14-af88203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex...