Copyright (c) 2014-2018 Carsten Sonne Larsen <cs@innolan.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
amath 1 "Version 1.8.5" "August 07 2018"
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
\[bu] 2
If amath is linked with system libraries (-lm) sometimes the real part
of a result of arccosh of a complex number, is negative instead of positive.
\[bu]
coth() with complex numbers is inaccurate on the 14th digit.
Please report any other bugs that you encounter via:
https://gitlab.com/rnger/amath/issues.
HOMEPAGE
https://amath.innolan.net/
SEE ALSO
amathc(3), amathr(3), amathi(3)
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.