ftp://wuarchive.wustl.edu/

CALC1.TAR-Z

A double-precision desk calculator with math library functions

and variables.Accepts interactive input or command line arguments

allowing a "csh" alias to let you say "calc arbitrary-math-expr".

CALC2.TAR-Z

Another desk calculator which accepts expressions on the command

line.

HEXCALC.TAR-Z

A calculator program based on the Texas Instruments Programmer II

calculator.

PAC.TAR-Z

"The ultimate on-screen calculator for UNIX".Zillions of features

including conversions,"NVRAM",checkb

trig functions, amortization, compound interest, user-definable

conversions, bit functions, stack, physical constants, macros,

percentages.

RPL.TAR-Z

An interpreter for HP's RPL "calculator programming language".

Should have the same functionality as an HP-28 calculator.

If none of these fit the bill, there is a nice scientific calculator on ftp://garbo.uwasa.fi/pc/ma

to which he will sell you the source code

His contact info is..

email : s4078tot@sun10.vsz.bme.hu