what's your agenda, are you writing a book? Isn't there a homogeneous coordinate system/transformation lab?

On 02/16/2016 06:16 PM, [email protected] wrote:
Date: Tue, 16 Feb 2016 15:18:43 -0600
From: Kip Murray<[email protected]>
To:"[email protected]" <[email protected]>
Subject: [Jprogramming] A plane rotation
Message-ID:
    <caofworgvydb1nmjwxkb0wosyfnlubxcdz20sv11uksfcfay...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

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



----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to