科學運算-矩陣 (一)

程式碼：

import numpy as np a = np.array([1, 2, 3], float) b = np.array([5, 2, 6], float) def Print(msg, ans): print msg, print ans def PrintFloat(msg, ans): print msg, print '%.2f' % ans def Sum(): ans = (a + b).sum() PrintFloat('sum(a + b) = ', ans) def Mean(): ans = (a + b).mean() PrintFloat('mean(a + b) = ', ans) def StdDev(): ans = (a + b).std() PrintFloat('std(a + b) = ', ans) def Add(): ans = a + b Print('a + b = ', ans) def Minus(): ans = a - b Print('a - b = ', ans) def Multiply(): ans = a * b Print('a * b = ', ans) def Devide(): ans = b / a Print('b / a = ', ans) def Mod(): ans = a % b Print('a % b = ', ans) def Power(): ans = b ** a Print('b ** a = ', ans) def Main(): Sum() Mean() StdDev() print Add() Minus() Multiply() Devide() Mod() Power() if __name__ == "__main__": Main()