# Algorithm:

http://www.tutorialspoint.com/data_structures_algorithms/expression_parsing.htm

# Github

http://git.oschina.net/progit/index.html

# Math

https://www.youtube.com/user/kvyi/videos

Part 6. Numerical Method

6.1 Newton-Cotes

6.2 Gauss Quadrature

6.3 Numerical Differentiation

- Forward and Backward Difference