Some background for people reading this in the future (in case it\'s not locked). I tend to do my programming in a high level language to understand the problem first. After
If it is easier for you to write in MATLAB, then the value would greatly depend on how much you value your time.
Comparing MATLAB and C or C++ for performance is very complicated. C or C++ are going to be faster in most cases, but in some linear algebra applications it is possible that MATLAB will execute the fastest. I remember a professor that claimed he had FORTRAN applications that ran slower than the equivalent in MATLAB. There are a lot of case studies on this - I would recommend you look at the different studies comparing the speed that turn up in google and compare them to what you're doing to make your decision.