ACSLogo is a Logo Interpreter for Mac OS X.
Logo is a popular language used to teach simple programming by guiding the progress of a ÔturtleÕ which moves around a graphics screen:
A new version is available (January 2009) Ñ 1.4f. It contains some enhancements and bug fixes - for a list of changes, see Release Notes.
I've created a User Guide for this release. You can download it from ÔOther StuffÕ on the right.
| The turtle in action |
Simple commands can be used to make the turtle move in a straight line or change direction, and complex patterns can be built up from the simple commands using procedures and recursive techniques:
Graphics can be exported as TIFFs, PDFs or SVGs.
ACSLogo requires MAC OS X. The current version, version 1.4f, requires Tiger (OS X 10.4) or above.
Download
The download is a self-extracting archive (1.9M).
Please note that this release requires Tiger (OS X 10.4) or later.
Right-click on the link and save it to disk:
This should automatically be mounted as a disk image. If not, double-click on it. Drag the enclosed folder to your Applications folder, or anywhere you like.
Read ReadMe.rtf
Any problems, please send an e-mail to 
Other Stuff
Command Reference (PDF, 748K). This looks better in Preview than Acrobat Reader.
User Guide (PDF, 5.7M). IÕll be adding to this over the coming months.
6/2/09 Ñ expanded chapter on Paths, added appendix on Internationalisation.
Previous version of ACSLogo (1.4e).
Previous version of ACSLogo (1.4d).
Version before that(1.4c).
Version before that (1.4b) - works with Panther.
Example graphics: