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Java相当于C＃Big Rational

[英]Java's equivalent of C# Big Rational

原文 2014-10-16 16:17:36 7 2 java/ precision/ biginteger

I'm currently working on project which needs absolutely exact precision - no approximation at all. 我目前正在从事需要绝对精确的项目-完全没有近似值。 Is there in Java anything like BigRational in C# ? Java中是否有C＃中的BigRational之类的东西？ Java's BigDecimal doesn't seem like good enough. Java的BigDecimal似乎还不够好。

2 个解决方案

There is not (if you don't like BigDecimal); 没有（如果您不喜欢BigDecimal）； however, you can make a class to represent it using BigInteger and BigDecimal. 但是，您可以使用BigInteger和BigDecimal制作一个类来表示它。 An example is found here. 在这里找到一个例子。

The Uncommons Maths library has a Rational type, which is probably what you're looking for. Uncommons Maths库具有一个Rational类型，这可能正是您要查找的。 It avoids loss of precision. 这样可以避免精度损失。

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