It supports addition, subtraction, multiplication, division, factorial, absolute value, modulus, reciprocal, square, power, square root, nth root and more. Additional formulae are being added as they are requested. MathString also supports AnsiString's, int's, long's and Extended data types. TMathEvaluator will take a string holding an expression and evaluate it with true order of operations. Future versions may allow for functions such as square root etc.
Documentation is included.
You can get the PDF version here .