Expression is a freeware scientific graphing calculator.
It can parse and evaluate multi-line textual numeric expressions, plot functions, store and recall variables, automatically recalculate and display expressions and even do molar mass calculations involving the Periodic Table of Elements. Expressions can be entered with the keyboard or mouse and are saved with their result for further viewing or use. It was designed small and unobtrusive with the ability to 'stay on top', resize dynamically, and be minimized to the system tray. ESBCalc 0 Free PC Company's homepage ESBCalc is a Freeware Scientific Calculator with Infix Notation, Brackets, Scientific Functions, Memory, Result History List and more. Source is included.