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0 pointswhiterknight2y ago0 comments

Affine transforms for N dimensions can be represented as matrices/linear maps in dimension N+1

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Sure, but that isn't what they're doing on that webpage. They're just directly applying linear maps to shapes in R^2.

You can represent a wild variety of things by linear maps on suitably enlarged spaces.

Agreed. Context: This sub thread is discussing how to interpret matrices as an abstract thing that does something as opposed to the mechanics of multiplying

j / k navigate · click thread line to collapse

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eigenket2y ago

Sure, but that isn't what they're doing on that webpage. They're just directly applying linear maps to shapes in R^2.

You can represent a wild variety of things by linear maps on suitably enlarged spaces.

whiterknightOP2y ago

Agreed. Context: This sub thread is discussing how to interpret matrices as an abstract thing that does something as opposed to the mechanics of multiplying

j / k navigate · click thread line to collapse