From the former SlideRule website:
"A floating point calculator with a wide range of scientific
functions, number formats, conversions and memories. It can log
calculations in a separate window, like a printing calculator. Other
features include: Correct precedence operation, Sensitive rounding,
Undo/Redo, International number formats, Colour schemes."
This app was one of the best scientific calculators for the Classic
Mac OS in the 90s, besides PCalc. Non-crippled shareware. SlideRule
3.1 is freeware.
Minimum requirements:
68020 processor, 260K of free RAM
Classic Mac OS, System 7 or later
May vary on a case-by-case basis
Yaca 2.x: 68k with System 7.0 and later
SlideRule 2.4.x: 68k with System 7.0 and later (v.2.4.2 is Fat Binary)
SlideRule 2.6.1K: 68k with System 7.0 and later
SlideRule 2.6.1P: PPC with System 7.0 and later
SlideRule 2.7.x: PPC with Mac OS 8.0 and later
SlideRule 3.x: PPC with Mac OS 8.6 and later or PPC with Mac OS X
(Carbonized apps)
Version 2.4.1 tested successfully on Basilisk II for Linux w/System
7.5.5.
Version 2.4.2 tested successfully on Basilisk II for MaxOSX w/System
7.5.5.
Version 2.7.1 tested successfully on SheepShaver for MacOSX w/Mac OS
9.0.4.
Version 3.1 tested successfully on Mac OS X 10.6.8 Snow Leopard
w/Rosetta.
Strangely, the behavior of version 2.6.1K does not make any sense on
Basilisk II although it seems fine running in SheepShaver. Just an
illusion, results are sometimes foolish. Situation is worse for YaCa
2.x on both emulators.