本文实例讲述了Python求解平方根的方法。分享给大家供大家参考。具体如下:
主要通过SICP的内容改写而来。基于newton method求解平方根。代码如下:
#!/usr/bin/python
def sqrt_iter(guess,x):
if(good_enough(guess, x)):
print guess
else:
sqrt_iter(improve(guess, x),x)
def improve(guess, x):
return average(guess, x/guess)
def average(x,y):
return (x+y)/2
def good_enough(guess,x):
if(abs(guess * guess -x) < 0.0001):
return True
else:
return False
def sqrt_oliver(x):
sqrt_iter(1.0,x)
sqrt_oliver(5)
希望本文所述对大家的Python程序设计有所帮助。
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