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面试题精选:求根号2简单？高级算法你肯定不会（2）

各种编程语言是如何实现sqrt?上面说了3个解法，那你是不是也很好奇目前各种编程语言库函数里对sqrt是如何实现的？我也很好奇，于是我们帮你们翻了jdk源码，发现它根本就不需要自己实现sqrt，毕竟sqrt在计算机领域是有个比较常用的计算，所以主流的CPU架构都提供了对sqrt的硬件支持，只需要一...

面试题精选:求根号2简单？高级算法你肯定不会（1）

前两天逛github看到一道很简单的面试题——如何不用库函数快速求出 2 \sqrt2 2 的值，精确到小数点后10位！第一反应这不很简单嘛，大学数据结构课讲二分查找的时候老师还用这个做过示例。但转念一想，能作为大厂的面试题，背后绝对没有那么简单，于是我google了下，结果找到了更巧妙的数学方法...

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大厂面试题:求根号2简单？高级算法你肯定不会

前两天逛github看到一道很简单的面试题——如何不用库函数快速求出$\sqrt2$的值，精确到小数点后10位！第一反应这不很简单嘛，大学数据结构课讲二分查找的时候老师还用这个做过示例。但转念一想，能作为大厂的面试题，背后绝对没有那么简单，于是我google了下，结果找到了更巧妙的数学方法...

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