What should do when I get this error?... ??? Undefined function or method 'Study_loan_amort_tab' for input arguments of type 'double'.

I would like generate an amortization schedule from the following code but I am not able to proceed because of the error. What should I do? I tried answers on Google but they are too complicated for me to understand. Please help me out.

r = 575;
y = 3;
p = 2500;
i = 1.5;
n = 12;
table = Study_loan_amort_tab(r, y, p, i, n);
disp('Mortgage Amortization Table')
s = sprintf('\t\t%s\t\t%s\t\t%s\t\t%s\t%s', ...
    ' Month', 'Interest', 'Amortz', ' Balance', ' Acc. Int');

??? Undefined function or method 'Study_loan_amort_tab' for input arguments of type 'double'.

[KSSV]

Study_loan_amort_tab is a function. It should be in the present working directory. It seems it is not available, so error popped out.

[Beata Dongwi]

How do I define a function in matlab?

[Beata Dongwi]

I tried but I am getting another error

[Steven Lord]

It sounds like you're new to MATLAB. If that's the case I suggest you start with the free MATLAB Onramp tutorial (https://www.mathworks.com/support/learn-with-matlab-tutorials.html) to quickly learn the essentials of MATLAB. This should cover calling and writing functions in MATLAB.