hypot()方法返回的欧几里德范数 sqrt(x*x + y*y).
语法
以下是hypot()方法的语法:
hypot(x, y)
注意:此函数是无法直接访问的,所以我们需要导入math模块,然后需要用math的静态对象来调用这个函数
参数
- x -- 这必须是一个数值
- y -- 此方法返回欧几里德范数 sqrt(x*x + y*y)
返回值
此方法返回欧几里德范数 sqrt(x*x + y*y)
例子
下面的例子显示 hypot()方法的使用。
#!/usr/bin/python import math print "hypot(3, 2) : ", math.hypot(3, 2) print "hypot(-3, 3) : ", math.hypot(-3, 3) print "hypot(0, 2) : ", math.hypot(0, 2)
当我们运行上面的程序,它会产生以下结果:
hypot(3, 2) : 3.60555127546 hypot(-3, 3) : 4.24264068712 hypot(0, 2) : 2.0

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