I've run into an issue with polar coordinates.
Lets say I have the following polar coordinates (5.656, 45°)
A little bit of math, and the cartesian representation would be (4,4)
I understand the conversions quite well, though I can't figure out how to calculate X & Y for a change in angle (theta). For example, I want to rotate the cartesian coordinate (4,4) by 90° At a glance I know the result should be (4,-4) but how can I calculate the result?
Lets say I have the following polar coordinates (5.656, 45°)
A little bit of math, and the cartesian representation would be (4,4)
I understand the conversions quite well, though I can't figure out how to calculate X & Y for a change in angle (theta). For example, I want to rotate the cartesian coordinate (4,4) by 90° At a glance I know the result should be (4,-4) but how can I calculate the result?
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