Domain R²
Codomain R²

Linear map of the plane

A shape and a vector under v ↦ A·v
Matrix A
(
)
Presets
Effect on the shape
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Chosen vector
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Edit A's entries or pick a preset. The shape in the domain is mapped to the codomain by v ↦ A·v.
Drag ● to choose a vector v (domain); its image A·v appears in the codomain.