Python Tutorial for Beginners

What is an efficient way to initialize and access elements of a large array in Python? I want to cr… Read more Efficient Python Array With 100 Million Zeros?

Does any Python library offer a function that implements the 'fast inverse square root' alg… Read more Inverse Square Root In Python

I accidentally found that in python, an operation of the form string1.join(string2) Can be equival… Read more Replacing The Empty Strings In A String

I have a following piece of code, which basically evaluates some numerical expression, and use it t… Read more Is There Any Good Way To Optimize The Speed Of This Python Code?

I have two numpy arrays: A 1D array called t of shape (70L,) with element called let s say ti A 3… Read more Efficient Product Of 1d Array And 3d Array Along One Dimension - Numpy

Does someone know why pandas/numpy map is slower then list comprehension? I thought I could optimiz… Read more Why Is Pandas Map Slower Than List Comprehension