[Jprogramming] A plane rotation

Kip Murray thekipmurray at gmail.com
Tue Feb 16 21:18:43 UTC 2016


Fairly easy: write a verb that rotates a point in the plane by the angle of
a given complex number.  For example

    1j1 rot 1 1  NB. Rotate 1 1 counterclockwise 45 degrees
 0 1.414213562

Background information:  when you multiply two complex numbers the
magnitudes are multiplied and the angles are added.

--Kip Murray



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