I have a problem with my calculations. I have changed the Order to 15. If I go any higher than this I get the error message:

"Error, invalid input: rhs expects 1 argument, but received 0"

after the loop. I need to calculate more terms. Does anyone know why this is happening and how I can fix it?

This is the spreadsheet

> restart;

> with(plots);

> nmax:=14:

> Order:=nmax+1: