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Maths ~5 minmatrices, linear transformations, basis vectors
What a matrix actually does
Drag two arrows and the whole picture follows: stretched, sheared, turned or flipped. That’s all a matrix is.
Maths · ~5 min · live model
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The idea behind this lab (open after you’ve tried it)
A matrix is just where the two basis arrows land. Every other point is built from them, so move the arrows and the whole grid moves with them.
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A full quest builds the idea step by step, with checks and a new case to apply it to.