The usage of tic and toc in Matlab.

In MATLAB, tic and toc are a pair of functions used to calculate the runtime of a program.

The tic function is used to start a timer, while the toc function is used to stop the timer and return the elapsed time.

Here are some examples of how to use tic and toc:

tic
% 程序代码
toc

In the above example, the tic function starts a timer, then the program code is executed, and finally the toc function stops the timer and returns the elapsed time.

You can place the tic and toc functions before and after the code segment you want to test in order to calculate the code segment’s running time.

Note: There should be no other timer operations between the tic and toc functions, as this may result in inaccurate timing results.