[plt-scheme] rotate90 is clockwise on einstein; CCW on zorro

From: Jens Axel Soegaard (jensaxel at soegaard.net)
Date: Thu Oct 2 14:24:52 EDT 2008

I have found and fixed the bug(s). The new version is now available
at PLaneT as version 2.1.

A very small test suite is included. Please write if, you find more

#lang scheme
(require (planet "test.ss" ("soegaard" "sicp.plt" 2 1)))

Jens Axel Søgaard

Posted on the users mailing list.