ActionScript 3的数学不一致 [英] Actionscript 3 Math inconsistencies

问题描述

我想打造的Flex / ActionScript 3的一个计算器，但有一些奇怪的结果使用Math类：

I'm trying to build a calculator in Flex / actionscript 3 but have some weird results using the class Math :

trace(1.4 - .4); //should be 1 but it is 0.9999999999999999
trace(1.5 - .5); //should be 1 and it is 1
trace(1.444 - .444); //should be 1 and it is 1
trace(1.555 - .555); //should be 1 but it is 0.9999999999999999

我知道有浮点数一些问题，但你可以看到，它至少应该为我所有的例子失败了，是吗？

I know there are some issues with floating point numbers, but as you can see, it should at least fail for all of my examples, am I right?

如何解决问题的其他计算器，我应该如何进行，才能在ActionScript 3中构建一个有用的计算器吗？

How the problem is solved in other calculators and how should I proceed in order to build a usable calculator in Actionscript 3 please?

感谢你在前进， 阿德南

Thank you in advance, Adnan

推荐答案

欢迎到IEEE 754浮点。享受不准确的。如果你想避免他们使用定点机构。

Welcome to IEEE 754 floating point. Enjoy the inaccuracies. Use a fixed-point mechanism if you want to avoid them.

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