how to convert text into expression

I have a text file which has string say as (50%((15000-a)+b)). is there any way to calculate this expression.

[Stephen23]

Note that (50%((15000-a)+b) is not valid MATLAB syntax, and appears to be written in some other language: you would have to write a parser for whatever language that is. This is not a trivial task.

Answer 1

[Azzi Abdelmalek]

It seems that you are looking for functions such eval, which in fact is not recommended by forums and also by Matlab help. read

http://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F