title: Integrals in java
body: <p>I would like to ask whether is there a library or method in java that can take a string which contains the prescription of a function like "4x^2 + 3x" and return the integrated version of the string. When the input is "4x^2 + 3x" I want to get an output like "(4/3)x^3 + (3/2)x^2 + c".</p>