What does the following error message actually mean: Check for missing argument or incorrect argument data type in call to function 'series'.

Hi!

I've started getting errors when attempting to call some new class functions which I've written.

num1=[10]; den1=[1,5,100];
 num2=[1,12]; den2=[8,25];
[num,den]=series(num1,den1,num2,den2);

The error message I get is the following:

Check for missing argument or incorrect argument data type in call to function 'series'.

[Walter Roberson]

On your system, the Control System Toolbox is not installed, or license cannot be found, or for some reason it is not present on the path.

I think you are ending up invoking the series() function from the Symbolic Toolbox.

What shows up for

which -all series

[Luis Flores]

Thanks for the answer, exactly the license cannot be because is an academic, I tried with

which -all series

and get this:

C:\Program Files\MATLAB\R2019a\toolbox\symbolic\symbolic\@sym\series.m % sym method

Please help me to solve this problem.

[Walter Roberson]

You do not have the Control System Toolbox installed.