AddUp 

Free tape-like calculator able to process non-trivial arithmetic expressions such as: -(((1 + 2) * 3)^4)% + 56e-7 / 8
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JD Free Calculator 

JD Free Calculator is a complete replacment to the standard windows calculator. Not only does it perform all the functions of the windows calculator it also offers: Complete printable tape, A basic loan calculator with comparisons
software loan mortgage savings

ProKon 

ProKon is a calculator unlike any you've seen before. It features unit conversions of over 400,000 units, a pop-up scientific/financial/geometry calculator with tape, as well as many calculation modules covering a wide variety of topics.
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Financial Helper 2001 

Finance Helper 2001 - This program contains the following financial functions: a calculator with loan-comparison capability for various interest rates and term length. Another calculator for determining affordability for mortgage or auto loans, etc.
loan finances budget.

RF21 

Graphing scientific calculator with ample support for user defined functions and libraries. Numeric features include derivation, integration, Monte Carlo simulations, Runge Kutta, matrix inversion, nonlinear equation systems, function minimizer.
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Calculadora Inteligente 

Calculator with tape. Calculate rule of three, interest rate, dates and times, etc. It has several financial features, but it can also act like a standard calculator with options to save in file or print all calculations.
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