(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Write a Lisp program to calculate the sum of the first N positive integers where, for example, when N = 6 the sum of the first N = 21.

2. Relevant equations

If you try this out in tlisp at http://www.ugcs.caltech.edu/~rona/tlisp/ please note that the syntax for N - 1 is (+ N -1).

Or if you try it out in the console of Allegro Common Lisp from http://www.franz.com the syntax is (- N 1).

If you define your function as, for example, nsum, then the syntax for calling it with N = 6 is (nsum 6)

3. The attempt at a solution

Ok, I am no programmer so I don't even know where to start. This is not a programming class so I am not sure where to start.

Any help or direction would be appreciated!

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# Homework Help: Help - Lisp program to calculate the sum of first N positive integers

Can you offer guidance or do you also need help?

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