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How to redirect stderr to null in cmd.exe
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binning data in python with scipy/numpy
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184
It's probably faster and easier to use numpy.digitize():
import numpy
data = numpy.random.ran...
List all svn:externals recursively?
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144
Do the following in the root of your working copy:
svn propget svn:externals -R
As discusse...
MySQL: @variable vs. variable. What's the difference?
...nitialize this variable with a SET statement or inside a query:
SET @var = 1
SELECT @var2 := 2
When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables:
DELIMITER //
CREATE PROCEDURE prc_test (var INT)
BEGIN
DECLARE var2 INT;
SET var...
Given an RGB value, how do I create a tint (or shade)?
Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color?
3...
'float' vs. 'double' precision
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146
Floating point numbers in C use IEEE 754 encoding.
This type of encoding uses a sign, a signi...
How do you create nested dict in Python?
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313
A nested dict is a dictionary within a dictionary. A very simple thing.
>>> d = {}
&g...
How to access array elements in a Django template?
... access individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array.
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How do I calculate the normal vector of a line segment?
Suppose I have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line?
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