q.py

   1 from timeit import default_timer as clock
   2 from csympy import HashTable
   3 from sympy import *
   4
   5 x = Symbol("x")
   6 y = Symbol("y")
   7 z = Symbol("z")
   8 a = Symbol("x")
   9
  10 e = (1 + y + x + z)**8
  11
  12 #f = e*(e+1)
  13 f = e
  14
  15 print f
  16 t = clock()
  17 g = f.expand()
  18 t = clock() - t
  19 print len(g.args)
  20 print t