Sin and Cos Question with a circle

Sorry for asking the whole question here but this is confusing me as i know its a small answer

Describe how to use sin and cos to calculate the points on a unit circle. A unit circle is a circle with a radius of 1.
y = r sin( A ) and
x = r cos( A ), where A = the angle

IIRC.

If r == 1, then all you need to do is write a for loop that goes through all angles (to whatever granularity you want) and compute y = sin A and x = cos A.
Awesome, cheers man :D
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