How quaternions produce 3D rotation

31:51
Visualizing quaternions (4d numbers) with stereographic projection

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Quaternions

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How to Use Quaternions

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Finding Velocity On a Sphere Using a 3D Euler's Formula

10:43
Bertrand's Paradox (with 3blue1brown) - Numberphile

59:09
Quaternions - Freya Holmer | NGJ2025

20:33
a quaternion version of Euler's formula

12:25