Scientific Letter
Scientific Letter is a scientific mailer. It allows the user to create scientific mail messages with complex equations. This modern and beautiful scientific software makes the exchange of complex ideas simple. The scientific equation editor used in this software allows you to create complex... The recipient of a mail message from Scientific Letter by someone using another mailer will see the message text with equations included in it in LaTeX notation. ... Mailer features: + Equations may be extremely complex + Highest quality scientific equation display + Beautiful design + Fine usability...
http://www.sciletter.com/demo/scisetup.exe - 321Kb - 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

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... 3 log which is the default behaviour. ... Looks best with Windows XP in 800x600 (or better) and 32-bit colour. ... 3 rather than as 1. ... 3) can be entered as log 1. ... Now includes Prefix Function support so that Log (1.
http://www.esbconsult.com/esbcalc.zip - 803Kb - 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... Registered version also includes Electronic Documentation and PDF designed to produce Printed Documentation. ... Register only once for the life of the product. ... Also available as part of the ESBCalc Pro Suite which includes ESBUnitConv Pro.
http://www.esbconsult.com/esbcalcpro.zip - 1Mb - Download - Screenshot

vCalc
vCalc is a keyboard driven scientific calcualtor, that works using the RPN notation common in well known scientific calculators. It supports a complete set of math, binary and statistical operations. * Keyboard driven user interface * Four basic operations on integer and floating point numbers...
http://www.icegiant.com/downloads/vcalc.exe - 804Kb - Download - Screenshot

DreamCalc Graphing Calculator
DreamCalc is the smarter alternative to a hand-held Graphing 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. With DreamCalc, you'll be able to graph functions and plot list data more... Select from Reverse Polish Notation or two styles of algebraic input, and with the optional ability to run in your Windows system tray--DreamCalc will always be there whenever you need to reach for a calculator.
http://www.dreamcalc.com/downloads/dc3g_setup.exe - 3Mb - 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! ... Binary; is used to manipulate unsigned Binary integers of various lengths (word size) from 4 to 64 bits, about 28 functions are available.
http://www.j-a-associates.com/DnLoads/rpn.zip - 1Mb - Download - Screenshot

ParseRat File Parser Converter Restructurer
NEVER AGAIN RE-KEY LEGACY DATA: ParseRat v2. 0 Parses, converts and restructures files. Reads most files including XML, web pages and tables, page image print files and other multi-line data blocks from other processes, fixed format, delimited, dBase, structured binary, etc. ... Convert numeric information from decimal, hex or scientific to decimal, hex or scientific notation. ... Convert string output to UPPER CASE, lower case, Proper Case (Mixed Case - with intelligent handling of capitalization exceptions like McDonald, O'Rourke WordPerfect).
http://www.guysoftware.com/prtinst.exe - 1Mb - Download - Screenshot

AddUp
Powerful multi-purpose calculator densely packed with functionality. FINANCIAL: future value, present value, interest, payment, duration. SCIENTIFIC: logarithms, powers, exponentials, factorials, roots, NIST/CODATA scientific constants. CONVERSIONS: over forty categories of units from the common... NUMERIC BASES: binary, octal, hexadecimal, all bases from 2 to 36, simple notation. ... NUMERIC FORMATS: scientific (1. ... EDITABLE WORK AREA: better than a regular tape calculator. ... PREFERENCES: selectable keypads, adjustable button size, selectable font, top-level mode, Num-Lock, snap to...
http://orefa.com/addup/2/program/addup2setup.exe - 358Kb - Download - Screenshot

DreamCalc Financial Calculator (Pro)
DreamCalc Professional is the smarter alternative to a hand-held Financial 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. With DreamCalc, you'll be able to graph functions and plot... Select from Reverse Polish Notation or two styles of algebraic input, and with the optional ability to run in your Windows system tray--DreamCalc will always be there whenever you need to reach for a calculator.
http://www.dreamcalc.com/downloads/dc3p_setup.exe - 3Mb - Download - Screenshot