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SpeQ -- Small Powerful Math Program (Discovery)

Windows Calculator is a joke -- who wants to use the on-screen version of a $5 dollar calculator. Most replacements are far more powerful but kind the "lots of buttons" calculator interface. SpeQ break the calculator-look mode. It looks more like a text editor that lets you enter calculations -- and even say your work. SpeQ can be used by anyone for simple math problems but it is powerful enough to be useful to engineers and scientists.

Here's a feature list from the SpeQ website:

* Enter mathematical expressions in a sheet
* Operators:
      o Arithmetic: + - * / % ^
      o Conditional: =, <>, <, >, <=, >=
      o Logical: And, Or, Xor
      o Bitwise: &, |, ||
* Around 100 built-in constants on the area of
      o Mathematics: General, Number Theory, Chaos Theory, Combinatorics, Analysis
      o Physics: Universal, Electromagnetic, Atomic and Nuclear, Physico-Chemical
      o Conditions
      o Colors
* Functions:
      o Analysis: fnInt, fnDiff
      o Arithmetic: Abs, Exp, Ln, Log, Log10, Sqrt, Sign
      o Complex numbers: Re, Im, Abs, Arg, Conj
      o Hyperbolic: Cosh, Sinh, Tanh, ACosh, ASinh, ATanh, Sech, Csch, Coth
      o Integers: Round, Floor, Ceil, Fix
      o Probability: Factorial, nCr, nPr, !, Rand, RandInt
      o Numeral systems: Bin, Dec, Hex, Oct
      o Statistics: Avg, Min, Mean, Max, Prod, Sum, Std, Var
      o Trigonometry: Cos, Sin, Tan, ACos, ASin, ATan, Atan2, Sec, Csc, Cot
* Plot graphs
      o User-friendly trace, move and zoom functionality
      o Analyze intersections, minima and maxima
      o Adjust all figure properties in the Propertywindow or in the Workarea
      o Available functions: Plot, PlotLogX, PlotLogY, PlotLogLog, RGB, Close, CloseAll
* System functions and variables: Angles, Clear, ClearAll, Decimals, SciNotation
* Define your own variables for use in calculations
* Define your own functions, using one or more variables
* Decimal, binary, hexadecimal and octal numeral systems
* Complex number calculations
* Colored workarea
* Save and load sheets
* Orderly overview of all available functions and constants in the Functionstree
* A list with all defined variables and functions in the Memorylist
* Context-sensitive help and a detailed users guide

Operating System: Windows 95 - XP
Price: Free
Web Site: http://www.speqmath.com/

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Blog | by Dr. Radut