# Kalanand's August 2014 Log

## August 1st

### C++ Containers Cheat Sheet

Here is a quick summary of which STL containers to use in different usage scenarios.

For a long opinionated discussion see this thread on Stack Overflow.

## August 12th

### Generating dense matrix from a sparse matrix in numpy python

Here is a nice example again from Stack Overflow
from scipy.sparse import csr_matrix
A = csr_matrix([[1,0,2],[0,3,0]])
>>>A
<2x3 sparse matrix of type '<type 'numpy.int64'>'
with 3 stored elements in Compressed Sparse Row format
>>> A.todense()
matrix([[1, 0, 2],
[0, 3, 0]])
>>> A.toarray()
array([[1, 0, 2],
[0, 3, 0]])

## Go to July's log

Last modified: Wed Aug 27 15:24:29 CDT 2014