Matlab
Here follows a set of short but hopefully instructive examples illustrating the problems of getting good performance in Matlab. Note that Matlab 6.5 (and later) has a JIT-accelerator, so, it is important that you keep track of what version you are using.
It is important not to cut-and-paste (it is very slow for
some reason;
my guess is that the JIT-accelerator is not run in this case). So put
the
code in m-files and execute it by typing the name of the m-file, as
usual.