In simulink (matlab v65) , Can we create a function like this?.I did try but i can't

s^2 + 2 s + 3

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s +2

Answer 1

[Walter Roberson]

Sorry, no, in MATLAB 6.5 https://www.mathworks.com/help/releases/R13sp2/toolbox/simulink/slref/transferfcn.html?s_tid=srchtitle

"The order of the denominator must be greater than or equal to the order of the numerator."

In 6.5, the MATLAB function tf() did not have that limitation; see https://www.mathworks.com/help/releases/R13sp2/toolbox/control/ref/tf.html?s_tid=srchtitle . Depending on your use, you might be able to construct an S function; see https://www.mathworks.com/help/releases/R13sp2/toolbox/simulink/slref/slref.html.

Note: in 6.5 it appears that Embedded MATLAB function blocks did not yet exist, except possibly in the context of Code Composer Studio blocks.