(view help text of ClCalc.cs as plain text)
ClCalc.exe, Version 2.01
Command Line Calculator
Usage: CLCALC [ expression ] [ /DEBUG ]
Run the program without expression to open an interactive console.
Available Operators:
====================
+ - * / % << >> & |
Available Constants:
====================
Math.PI (pi) and Math.E (e)
Available Functions:
====================
Math.Abs Math.Acos Math.Asin Math.Atan
Math.Atan2 Math.BigMul Math.Ceil * Math.Ceiling
Math.Cos Math.Cosh Math.Exp Math.Floor
Math.IEEERemainder Math.Int * Math.Log Math.Log10
Math.Max Math.Min Math.Pow Math.Round
Math.Sign Math.Sin Math.Sinh Math.Sqrt
Math.Tan Math.Tanh Math.Truncate Random *
* Math.Ceil is equivalent of Math.Ceiling, Math.Int of Math.Truncate;
these equivalents were created for backwards compatibility with ClCalc 1.*
Random is an added function, not part of the .NET System.Math class but of
the .NET System.Random class.
Function names are not case sensitive, but constants e and pi are.
The Math. prefix is not mandatory in the input, except for upper case
Math.E and Math.PI.
For more details on functions and parameters, navigate to:
https://learn.microsoft.com/en-us/dotnet/api/system.math?view=netframework-4.5
EXAMPLES
========
Expression: Evaluates To: Remark:
=========== ============= =======
"%var1% & %var2%" 0 or 1 AND operator
"%var1% | %var2%" 0 or 1 OR operator
"16 >> 1" 8 shift right
"16 << 2" 64 shift left
"16 % 3" 1 use whitespace!
Math.Abs( -12 ) 12
Math.Acos( 0.707106781186548 ) 0.785398163397448
Math.Asin( 0.707106781186548 ) 0.785398163397448
Math.Atan( 1 ) 0.785398163397448
Math.Atan2( 1, 1 ) 0.785398163397448
Math.BigMul( 2147483647, 2147483647 ) 4.61168601413242E+18 Int64 result
Math.Ceiling( Math.PI ) 4 round up to int
Math.Cos( pi / 4 ) 0.707106781186548
Math.Cosh( 1 ) 1.54308063481524
Math.Exp( -1 ) * Math.E 1
Math.Floor( Math.E ) 2 round down to int
Math.IEEERemainder( 4, 3 ) 1 like "4 % 3"
Math.IEEERemainder( 5, 3 ) -1 unlike "5 % 3"
Math.Log( Math.E ) 1 natural logarithm
Math.Log10( 1000 ) 3 base 10 logarithm
Math.Max( -10, -12 ) -10
Math.Min( -10, -12 ) -12
Math.Pow( 2, 8 ) 256
Math.Round( 12.5 ) 13
Math.Sign( -3 ) -1
Math.Sin( pi / 4 ) 0.707106781186548
Math.Sinh( 1.5 ) 2.12927945509482
Math.Sqrt( 9 ) 3
Math.Tan( pi / 4 ) 1
Math.Tanh( 2 ) 0.964027580075817
Math.Truncate( -12.6 ) -12
Random( ) 0 <= result < 1 floating point
Random( 100 ) 0 <= result < 100 integer
Random( 1, 101 ) 1 <= result < 101 integer
pi / Math.Acos( Math.Pow(0.5, 0.5) ) 4 nested Math calls
Notes:
======
In non-interactive mode, the result is shown on screen and the exit code
("errorlevel") equals the rounded value of result, or 0 in case of
error or overflow.
In non-interactive mode, the result is shown in Standard Output stream,
and the initial expression in Standard Error stream, to allow capturing
or redirection of the result only.
In interactive console mode type DEBUG to toggle debug mode.
If expression contains special characters like < or > or | or & it is
highly recommended to enclose the entire expression in doublequotes and
use whitespace around these operators, e.g. "16 << 1".
Available constants are case sensitive, function names are not.
"Math.PI" may be abbreviated to "pi" (lower case), "Math.E" to "e".
In ClCalc all Math functions are limited to 2 parameters at most, usually of
types Double or Int32.
This program requires .NET Framework 4.5.
Culture is set to en-US, so use and expect decimal dots, not commas.
See this web page for methods available in .NET's Math class:
https://learn.microsoft.com/en-us/dotnet/api/system.math?view=netframework-4.5
Credits:
========
Originally based on Eval function (using JScript) by "markman":
https://www.codeproject.com/Articles/11939/Evaluate-C-Code-Eval-Function
Written by Rob van der Woude
https://www.robvanderwoude.com
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