how to calculate algorithm speed?

i have simple mat-lab algorithm and i would like to know how to calculate the speed of the algorithm?

Answer 1

[James Tursa]

I would start with tic and toc. You could also use timeit.

[Jennifer Steven]

thanks it works

Answer 2

[Walter Roberson]

You cannot. You can at best measure the speed of the implementation given those particular parameters, given whatever else the computer is doing at the same time (monitoring the mouse, checking for operating system updates, retrying to send the email messages stuck in the queue...)