reorganize dir

Signed-off-by: Mia Steinkirch <mia.steinkirch@gmail.com>

ebook_src/bitwise/get_float_rep_bin.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+__author__ = "bt3"
+
+''' Given a real number between 0 and 1 (eg: 0.72), this method print the binary
+    representation. If the Number cannot be represented accurately in binary, with at
+    most 32 chars, print error:
+'''
+
+def get_float_rep(num):
+    '''
+    >>> get_float_rep(0.72)
+    ('Error 2', '.1011100001010001111010111000010')
+    >>> get_float_rep(0.1)
+    ('Error 2', '.0001100110011001100110011001100')
+    >>> get_float_rep(0.5)
+    '.1'
+    '''
+
+    if num >= 1 or num <= 0: return 'Error 1'
+    result = '.'
+    while num:
+        if len(result) >= 32: return 'Error 2', result
+        r = num*2
+        if r >= 1:
+            result += '1'
+            num = r - 1
+        else:
+            result += '0'
+            num = r
+    return result
+
+
+if __name__ == '__main__':
+    import doctest
+    doctest.testmod()
+