嵌入式系统的三角函数 [英] Trigonometric functions on embedded system

问题描述

罪和 COS 函数是缓慢的，需要大量的资源，在嵌入式系统上运行的。如何计算罪和 COS 更资源节约型和更快捷的方式功能？

sin and cos functions are slow and need a lot of resources to run on embedded systems. How does one calculate sin and cos functions in a more resource-saving and faster way?

推荐答案

要计算泰勒或<一个HREF =htt​​p://en.wikipedia.org/wiki/Fourier%5Fseries>傅立叶系列总是要耗费时间。

To calculate a Taylor or Fourier series is always going to be time-consuming.

在嵌入式系统中，你应该想想查找表。

In an embedded system, you should think about lookup tables.

有可能还对有关惠普在其早​​期的科学计算器怎么优化，计算'网有趣的信息。

There might also be interesting information on the 'Net about how Hewlett-Packard optimised such calculations in their early scientific calculators.

我记得当时看到这样的东西的 的

I recall seeing such stuff at the time

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