GraphiCal 

GraphiCal is a programmable graphics calculator which lets you visualize expressions and formulas as graphs in a chart. Creates animated video clips from a sequence of graphs. Built-in functions (50) include integration, root finding ..
programmable graphics video clip animation

NumX 

NumX is a programmable 32 bit ActiveX calculator control for Windows. It has more than 50 built-in mathematical functions and supports decimal, hex and binary number formats. Advanced functions are integration, root and extremum finding ...
programmable activex control

tApCalc Scientific tape calculator(Arm) 

tApCalc SciFi is a handy Scientific calculator for Pocket PC. It provides a simulated paper tape that allows users to record calculations and save them for future reference. Includes trignometric,logarithmic functions in addition to standard keys.
scientific engineering educational tape calculator

tApCalc Desk tape calculator(Arm & xScale) 

CPA friendly desk calculator with tape that can be saved,edited,rerun and beamed without reentering all data again. Features TAX+,TAX-,Mark Up/Down, Total and Grand total keys in addition to standard calculator keys.
accounting accountant financial tax profit tape calculator

tApCalcCPA Accounting tape calculator(Palm OS) 

CPA friendly desk calculator with tape that can be saved,edited,rerun and beamed without reentering all data again. Features TAX+,TAX-,Mark Up/Down, Total and Grand total keys in addition to standard calculator keys.
accounting accountant financial tax profit tape calculator

FNA 

Multi-function calculator and unit conversion utility. Four modes of operation (statistics, trigonometry, base-n, and unit conversion). Many functions, formula entry mode. Up to 26 separate memory registers. Even includes periodic table of elements.
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