无法获得负数的平方根 [英] Cannot get square root of negative number

问题描述

我当前正在尝试获取-1的平方根，但是在Java中，Math.sqrt()返回NaN表示任何负值.如何在Java中获得-1的平方根?

I am currently trying to get the square root of -1, but in java, Math.sqrt() return NaN for any negative value. How do I get the square root of -1 in Java?

推荐答案

您无法获得负数的平方根.您可以做的是使用方法执行复数运算，以创建一个复数类.您可以在此处查看示例: http://introcs.cs .princeton.edu/java/97data/Complex.java.html

You can't get the square root of a negative number. What you could do is to create a Complex number class with methods to carry out complex number arithmetic. You may have a look here for an example: http://introcs.cs.princeton.edu/java/97data/Complex.java.html

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