Uff, that's not the usual quaternion!

The best way to do trigonometric operations with a computer is to convert between degrees and radians on the input/output layer and internally, on your program, use always radians.

Also, in order to manipulate 2D coordinates, using vector arithmetic would greatly simplify everything. For instance, check Math::Vector::Real.

In reply to Re: Perl and Quaternions by salva
in thread Perl and Quaternions by Fair Strides

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