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File:Rotation of a vector by 90 degrees.svg - Wikimedia Commons
Rotate Element Square and Arrow. 90 Degree Angle Rotation Tool
Graphics processing unit - Wikipedia
trigonometry for animation — py5 documentation
Machines, Free Full-Text
A novel zero-watermarking scheme based on two-dimensional cellular
vectors - Finding the angle between a point and another point with an angle - Mathematics Stack Exchange
Advanced vector math — Godot Engine (stable) documentation in English
Rotate Image by 90 degree - GeeksforGeeks