create Simulink custom block

Can we create a block thats not exist at library? like aerospace wing block?

Answer 1

[Jim Riggs]

You can create almost anything you like. See the "user defined functions" tab in the library browser.

You can use a "MATLAB function" or "Matlab subsystem" block to embed Matlab code in a Simulink block.

You can use an "S-function" block to embed C/C++ code in a simulink block.

And a "Subsystem block" can contain any number of other Simulink blocks, including Matlab function blocks and S-functions.