Add Discrete Fourier Transform

Author: Kyubyong

README.md

@@ -6,9 +6,9 @@ In numerical computing in python, NumPy is essential. I'm writing simple (a few
   * Array manipulation routines (DONE)
   * String operations (DONE)
   * Numpy-specific help functions (DONE)
-  * Indexing routines (WIP)
   * Input and output (DONE)
-  * Linear algebra (numpy.linalg) (DONE)
+  * Linear algebra (DONE)
+  * Discrete Fourier Transform (DONE)
   * Logic functions (DONE)
   * Mathematical functions (DONE)
   * Random sampling (numpy.random) (DONE)