NAME
       amath - Simple command line calculator

SYNOPSIS
       [ --noansi ] [ --shell | expression ]

DESCRIPTION
       amath features a case sensitive command line interface, internal IEEE
       754 calculations with 15 significant digits, calculations with real and
       complex numbers, variables and user defined functions, logarithmic and
       exponential functions, trigonometric and hyperbolic function and
       selected mathematical constants and rounding functions.

OPTIONS
       --noansi
              Disable output of ANSI escape codes. Default is enable.

       --shell
              Open an interactive shell.

OPERATORS
       +           Mathematical addition
       -           Mathematical subtraction
       *           Mathematical multiplication
       /           Mathematical division
       ^           Mathematical exponentiation
       =           Assignment of variable values
       |           Absolute value of number

VARIABLES AND CONSTANT
       pi          Trigonometric constant
       e           Euler's number
       i           Imaginary unit
       ins         Result of last calculation

MISCELLANEOUS FUNCTIONS
       abs         Absolute value of number
       sgn         Mathematical signum function
       round       Round to nearest integer number
       trunc       Discard fraction part of number
       floor       Mathematical floor function
       ceil        Mathematical ceiling function
       sqrt        Square root function (exp 1/2)
       cbrt        Cube root function (exp 1/3)
       lb          Binary logarithm function (base 2)
       ln          Natural logarithm function (base e)
       lg          Common logarithm function (base 10)

TRIGONOMETRIC FUNCTIONS
       sin         Trigonometric sine function
       cos         Trigonometric cosine function
       tan         Trigonometric tangent function
       cot         Trigonometric cotangent function
       sec         Trigonometric secant function
       csc         Trigonometric cosecant function
       crd         Trigonometric chord function
       exsec       Trigonometric exsecant function
       excsc       Trigonometric excosecant function
       arcsin      Inverse trigonometric sine function
       arccos      Inverse trigonometric cosine function
       arctan      Inverse trigonometric tangent function
       arccot      Inverse trigonometric cotangent function
       arcsec      Inverse trigonometric secant function
       arccsc      Inverse trigonometric cosecant function
       arccrd      Inverse trigonometric chord function
       arcexsec    Inverse trigonometric exsecant function
       arcexcsc    Inverse trigonometric excosecant function

HYPERBOLIC FUNCTIONS
       sinh        Hyperbolic sine function
       cosh        Hyperbolic cosine function
       tanh        Hyperbolic tangent function
       coth        Hyperbolic cotangent function
       sech        Hyperbolic secant function
       csch        Hyperbolic cosecant function
       arcsinh     Inverse hyperbolic sine function
       arccosh     Inverse hyperbolic cosine function
       arctanh     Inverse hyperbolic tangent function
       arccoth     Inverse hyperbolic cotangent function
       arcsech     Inverse hyperbolic secant function
       arccsch     Inverse hyperbolic cosecant function

EARLY TRIGONOMETRIC FUNCTIONS
       ver         Versed sine function
       vcs         Versed cosine function
       cvs         Coversed sine function
       cvc         Coversed cosine function
       hv          Haversed sine function
       hvc         Haversed cosine function
       hcv         Hacoversed sine function
       hcc         Hacoversed cosine function
       arcver      Inverse versed sine function
       arcvcs      Inverse versed cosine function
       arccvs      Inverse coversed sine function
       arccvc      Inverse coversed cosine function
       archv       Inverse haversed sine function
       archvc      Inverse haversed cosine function
       archcv      Inverse hacoversed sine function
       archcc      Inverse hacoversed cosine function

STATEMENTS
       about       Show about text
       clear       Clear console window
       def         Define function
       delete      Delete variable or function
       digits      Set number of significant digits
       eval        Evaluate arithmetic expression
       execute     Execute statements in a file
       functions   Show list of user defined functions
       input       Change numeral input system
       help        Show basic help text
       output      Change numeral output system
       list        Show content of a directory
       show        Show content of a file
       load        Load variable and functions from file
       save        Save variable and functions to file
       variables   Show list of variables
       version     Show version string
       license     Show copyright and license texts
       memory      Show internal memory usage
       exit        Exit program

EXIT STATUS
       amath exits 0 on success and >0 if an error occurs.

EXAMPLES
       Add two numbers:
              $ amath 1.3 + 2.6

       Find cosine of pi/2:
              $ amath "cos(pi/2)"

       Find square root of minus 25:
              $ amath "sqrt(-25)"

       Show only 5 digits in the result of a division:
              $ amath "digits 5;34/11"

       Script block with functions:
              round(1.5461);round(-1.5461);
              ceil(43.5461);ceil(-43.5461);
              floor(39.9531);floor(-39.9531);
              trunc(23.827);trunc(-23.827);
              sqrt(100);sqrt(52.23);

       Script block with user defined functions:
              f(x)=x*2+1;
              g(y)=y^2+y*1.5+2;
              a=2;b=3;c=a+b;
              f(2.2);c+1.1;

BUGS
         Please report any other bugs that you encounter via:
         https://gitlab.com/rnger/amath/issues.

HOMEPAGE
       https://amath.innolan.net/

AUTHORS
       Written by Carsten Sonne Larsen <cs@innolan.net>. Floating point to
       string conversion is based on software written by Ryan Juckett. The
       code in complex calculations is derived from software written by
       Stephen L. Moshier. The code in MemSet and MemCopy is derived from
       software contributed to Berkeley by Mike Hibler and Chris Torek.

January 11 2021                  Version 1.9.0