ESBCalc™ v5.1.1 - 803 kb - 7 March 2006 - ESBCalc is a Freeware Scientific Calculator for Windows with Infix Notation, Brackets, Scientific Functions (Trigonometric, Hyperbolic, Logarithmic - including Base 10, Base 2 & Natural - plus more), Memory, Paper Trail, Result History List and more. v5 Includes support for Prefix functions so to evaluate log (10) you can enter log 10 rather than 10 log (which is the default behaviour)
Works on Windows 95, Windows 98, Windows Millennium, Windows NT4, Windows 2000, Windows XP and Windows 2003.
The visual appearance of ESBCalc has been optimised for 800x600 (or better) with 16-bit colour (or better). It looks really great under Windows XP with its 32-bit colour. You will also get the "nicer" buttons on Windows XP and above.