Android: Parse simple mathematical formula string
<p>I have users entering numbers into EditText fields, but would like them to be able to write things like 100+32+10 into the fields as well. I expect simple expressions only, common four functions. In fact, just addition would cut it too.</p>

<p>For just addition, I guess it wouldn't be that hard to split up the string and do it myself I suppose, but I'm curious to know if there is a library which can do what I want much more cleanly.</p>

<p>Any suggestions?</p>
