Open mathematics · A plane with a product

Multiply as rotate

z ↦ az is a rotate-and-scale. One picture for a whole first course.

a = 0.6+0.8i · |a|=1.00 · arg=0.93

Re aIm a

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Multiply as rotate

This chat can see the instrument. Questions here are about this picture.

Exclusive to this lab — pick one, or type your own about the controls.