Raymond Norton wrote:

I am following the tutorial. When I attempt to add this script I get a syntax error on line 1. It doesn't like the quotes.

Can anyone give me advice on this?

## Script (Python) "calculateCompoundInterest" ##parameters=principal, interest_rate, periods, years ## """ Calculate compounding interest. """ i = interest_rate / periods n = periods * years return ((1 + i) ** n) * principal

The quotes are probably OK. Not knowing exactly what you are seeing, I would suggest deleting the whitespace at the beginning of each line. Python uses indentation in an intuitive way most of the time, but arbitrary indentation like above is a problem, however, and can give a "syntax error." hth, -- Jim Washington