My first cut at fun math stuff for sci/eng types, including a reworked and much better tested version of the double dispatching math stuff has showed up at the UIUC arhcive <ftp://st.cs.uiuc.edu/Smalltalk/Squeak/goodies/EngineeringMath/>.

For an overview and more detailed description, read <ftp://st.cs.uiuc.edu/Smalltalk/Squeak/goodies/EngineeringMath/EngineerMath.html>.

Travis Griggs