I am trying to find a way to write mathematical notation for an if statement in LaTeX.
For example I would like to have this python code in mathematical notation:
def my_function(x):
result = []
for ele in x:
if ele > 0:
result.append(ele * 2)
else:
result.append(0)
return result
I want every element of x to double if the element is above zero, and the the element is not zero, I want it to be set to zero.
x = [1,3,4, -1,2,-3] should become [2, 6, 8, 0, 4, 0].
When Googling around for the answer I came across Iverson Bracket, but this is not quite what I need, though it is close.
My final result should look something like this:
result = {if x > 0 => x * 2
{else x => 0
With one big {, and prettier looking, but I don't know how to do this in LaTeX.
a_n=x_n + \abs{x_n}– marczellm Jun 22 '13 at 20:36$2x[x>0]$, but this is more a math question than (La)TeX – egreg Jun 22 '13 at 20:39