How to write a matlab script and test for percentage error

Hi i am having some problems with coming up with a script to estimate cos (π/3) and the percentage error by adding terms one at a time, starting from cos x = 1.

[Rik]

The first step in programming in Matlab is figuring out what it is you want to do. We can read your mind, so you need to explain it.

As the cosine doesn't work with consecutive terms, you are probably talking about something similar to a Taylor series approximation. You need to write down what Matlab needs to do. If you can't do it directly in Matlab syntax, start out with the mathematics.

This sounds like homework. You can find guidelines for posting homework on this forum here.

[Jan]

This sounds like a homework question. Please post the code and explain the problems you have. Currently you did not ask a specific question, so how can we help you to solve your homework?