ESBCalc - Freeware Calculator
ESBCalc is a Freeware Windows Scientific Calculator with Infix Notation, Brackets, Scientific Functions, Memory, Optional Paper Trail, Result History List, Customisation of the Colours and Fonts used, Customisation of the Hints, and more. Functions include Trigonometric, Hyperbolic, Logarithmic... Now includes Prefix Function support so that Log (1. ... Looks best with Windows XP in 800x600 (or better) and 32-bit colour. ... 3 log which is the default behaviour. ... 3) can be entered as log 1. ... 3 rather than as 1.
http://www.esbconsult.com/esbcalc.zip - 803Kb - Download - Screenshot

Cosycalc
The main idea of our project is: "Comfort is the first". This calculator is not a scientific or an engineering one. It is a basic calculator for everyday usage. But as it often happens, merits and demerits change their places. When did you use all that scientific or engineering functions? ... And the third feature that seemed rather actual for us is the hide/restore function for keyboard panel. ... With this calculator: "You even don? ... In that case you can just hide the virtual keyboard panel to minimize a size of the calculator.
http://www.cosycalc.com/cosycalc.zip - 176Kb - Download - Screenshot

DreamCalc Scientific Calculator
DreamCalc is the smarter alternative to a hand-held Scientific Calculator for your PC or laptop! You'll get the intuitive feel and productivity of using a professional hand-held, but one which adapts to your way of working. Select from Reverse Polish Notation or two styles of algebraic input,... DreamCalc also offers you a full range of scientific functions, statistics, complex numbers, base-n logic, unit conversions, built-in constants and a powerful polynomial solver. ... It is a "must" for business, science, engineering and education.
http://www.dreamcalc.com/downloads/dc3s_setup.exe - 3Mb - Download - Screenshot

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. Paper tape simulation has many advantages. You can start a calculation and continue adding new calculations till you have... The tape can also be saved as a txt file for editing with other applications such as Pocket Word.
http://www.softtrends.com/Downloads/tApCalcSiFi-ArmsTrial.zip - 0b - Download - Screenshot

Orneta Calculator for Smartphone 2002
Orneta Calculator is a simple and easy to use application that acts like a standard scientific handheld calculator for Windows Mobile based Smartphone's. Just use your Smartphone when a separate handheld calculator is too much. Enjoy the simple access for quick calculation of difficult problems. ... You can perform any of the standard operations for which you would use a calculator, including basic arithmetic, such as addition and subtraction, as well as functions found on a scientific calculator, such as logarithms and factorials.
http://www.orneta.com/srvc/dl/calculator_sp_2002.exe - 51Kb - Download - Screenshot

ESBCalc Pro - Scientific Calculator
ESBCalc Pro is an Enhanced Windows Scientific Calculator with Infix Processing, Exponential Notation, Brackets, Scientific Functions, Memory, Optional Paper Trail, Printing, Result History List, Integrated Help and more. Functions include Trigonometric, Hyperbolic, Logarithmic - Base 10, Base... The calculator can have "Prefix Functions" turned on so that when calculating log (25), you can enter log 25 rather than the traditional 25 log. ... The Calculator also has an expression editor that allows the data that has been entered can be then edited and recalculated.
http://www.esbconsult.com/esbcalcpro.zip - 1Mb - Download - Screenshot

PG Calculator (Second Edition)
PG Calculator is a powerfull scientific calculator and an excellent replacement for standard calculator. It ofers full customizable user inteface and looks like real calculator on user desktop. PG Calculator works in Algebraic and RPN modes. It works with integer, real and complex numbers,... PG Calculator enables numbers inputing in binary, octal, hexadecimal and exponential formats. ... PG Calculator contains list of commonly used mathematic, physic and chemical constants and supports user-defined variables.
http://www.pgcalc.net/setup-pgcalc-se-2.2-9.win32.exe - 2Mb - Download - Screenshot

RPN Engineering Calculator
This RPN calculator offers 250 solutions with six unique keypads. It has a complete help system with individual tips for all but the most ordinary functions and a Tip of the Day feature for new users. You can select fixed, scientific or engineering notation and degrees, radians, or grads as... Briefly, unique to the 6 keypads are: Standard; contains several of the functions found on a normal scientific calculator (log, ln, N! ... ), and some unique to itself: a simple math teaching aid for kids, Wind Chill calculator, and more.
http://www.j-a-associates.com/DnLoads/rpn.zip - 1Mb - Download - Screenshot

Kalkulator
The Mother of all Calculators, a Swiss Army knife for scientists and engineers. Perhaps the most capable scientific/engineering calculator for Windows. On one hand, this is a calculator: evaluates expressions with more than 100 functions (trig/inverse, log/exp, statisical distributions, Euler,... Hard-to-find features: systems of non-linear and differential (ODE) equations, multi-argument function extremum search and point or histogram fitting with an arbitrary function. ... There ara also unit conversions, physical constants, computer math (binary, octal, hex), and function graphs included.
http://www.wrotniak.net/works/kalkulator/_zip/kalkulator-inst.exe - 956Kb - Download - Screenshot

Numero
Numero is a calculator program that I made because I don't like the calculator that comes with Windows. Microsoft's calculator program only lets you type in one number at a time. Mine, however, can do the order of operations, so you can type in the whole expression at once. ... Numero has about everything that you would expect to see on a scientific calculator, including trigonometric and arctrigonometric functions. ... You can change the colors of the window, and you can change how transparent it is.
http://gpcecil.home.mchsi.com/downloads/Numero.zip - 149Kb - Download - Screenshot