math - Converting polar coordinates to rectangular coordinates -

Convert an angle to a point

How did I change a angle (in degrees / radians) A certain distance from a point (X, Y) is away from the center point

rotating around a point Like the point.

atan2 of the opposite that calculates the angle of the point Y / x (in radians).

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Note: I kept the original title because it is so that people do not understand!