问题描述
我是个初学者。我想一个字符串转换成数学公式，以便我的图形计算器的输入
例如：
I'm a beginner. I want to convert a string into a mathematical equation in order to be the input of my graphic calculator for example:
COS（X + 1）+ LN（X）
所以我们将它转换为
so we will convert it to
double x = -10;
for (int i=0; i<100; i++) {
double y=Math.cos(x+1)+Math.log(x)
x=x+0.5
}
所以我想知道转换y的方法
so I want to know a method of converting y
感谢您
推荐答案
有没有在java中乱用的解决方案这一点。
There is no "out-of-the-box" solution in java for this.
但是：
强制性的答案：谷歌 - >字符串转换为数学EX pression Java的前几个答案是pretty好（如：<一href=\"http://stackoverflow.com/questions/2226863/whats-a-good-library-for-parsing-mathematical-ex$p$pssions-in-java\">What's一个好的图书馆在Java解析数学EX pressions？）
强制性的回答2：有在网上为将字符串转换成数学EX pressions，命名它们是题外话根据规则相当多的图书馆，所以我建议强制性回答最初的几个点击
However:Obligatory answer: google -> "convert string to mathematical expression java" first few answers are pretty good (like: What's a good library for parsing mathematical expressions in java? )Obligatory answer 2: There are quite a few libraries on the net for converting strings into math expressions, naming them would be off-topic according to the rules, so I suggest "Obligatory answer" first few hits.
也最有可能你选择，你会得到一个更好的格式关闭，写自己该格式分析器。
Also most likely you are better off by choosing a Format you will receive, and write your own parser for that format.
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