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Anonymous Thu 09 Jul 00:43:16 2020 No.11882406 View Reply Original Report

Quoted By: >>11882413 >>11882719 >>11882739

math bros, what operation do I perform on a vector [x y z] to rotate it to any angle I want, but maintain length?

Anonymous

Anonymous Thu 09 Jul 2020 00:47:33 No.11882413 Report

Quoted By:

>>11882406
https://en.wikipedia.org/wiki/Orthogonal_matrix

El Arcón

El Arcón Thu 09 Jul 2020 00:56:30 No.11882444 Report

Quoted By: >>11882750

that's a "unitary" operation you're looking for.

Anonymous

Anonymous Thu 09 Jul 2020 02:57:14 No.11882719 Report

Quoted By:

>>11882406

It's calmed a rotation matrix.

Anonymous

Anonymous Thu 09 Jul 2020 03:03:48 No.11882739 Report

Quoted By:

>>11882406
how do the unit vectors transform?

i think in 2D if you rotate the unit vector along x by an angle q then it becomes x*cos(q) + y*sin(q) and likewise y becomes y*cos(q) - x*sin(q). i probably botched this but you should understand

Anonymous

Anonymous Thu 09 Jul 2020 03:07:55 No.11882750 Report

Quoted By:

>>11882444
Do they work in the “neighborhood of infinity” ?

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