SYNOPSIS

concalc [options] "expression"

concalc -m script "path"

DESCRIPTION

concalc calculates the given input term and returns the result as text. Please use will have problems with the shell interpretor. If you give concalc more than one expression, all expression will be put together.

CALCULATION SYNTAX

standard calculations

2*(3+4/9)^3

standard operations

+ - * / ^ % sin cos tan asin acos atan sinh cosh tanh asinh acosh atanh ln log & | ! && || ~ >> << x rnd sqrt curt root integ d/dx

sqare root and cubic root

sqrt12 curt8

trigonometric functions and logarithms

sin3.64+ln5

other roots

fourth root of nine: 4root9

differential calculation

differential calculation of 2x^2-3x+3 at x=9: d/dx(2x^2-3x+3,9)

integration

integration of sinx+cosx between -1 and 3.2: integ(sinx+cosx,-1,3.2)

set variables

save the result of a calculation in variable A: 12*45/2->A

recall variables

multiply the saved value with 2: A*2

use last result

The last result is saved in the answer memory: ans+1

CONSTANTS

e

euler constant

pi

pi; example: sin(pi/2)

NUMBERS

standard

12.34

with exponent

12.23e-5

complex

12i-5

OPTIONS

-o, --output [output length]

The argument is a number between 2 and the maximal possible output length (normally 18).

-m, --mode [calculator mode]

The mode can be std (default, normal scientific calculatons), base (for logic functions and base-n calculatons) or script (for executing scripts). In scripting mode, the last argument must be the path to the script file.

-c, --complex

This option enables complex numbers for the calculation. They are switched off by default.

-b, --base [calculator base]

The argument must be one of hex (hexadecimal), dec (decimal, default), oct (octal) and bin (binary). This option can only be used when -m base is set.

-a, --angle [angle type]

The argument must be one of deg (degrees), rad (radiant), gra (grade).

-v, --version

Output the version of Concalc.

-h, --help

Outputs a short help.

SCRIPTING

The script interpreter of calc uses a C-like programming syntax. The following command are supported.

if expression

if(condition)

  command for condition true;

else command for condition false;

while loop

while(condition)

  command that is run while condition is true;

for loop

for(initialisation; condition; count-command)
  command that is run while condition is true;

print command

print( output to print out );

getline command

getline; // read a text line from stdin and returns this text

getkey command

getkey; // return the key pressed by the user
        // blocks until the user presses any key

keystate command

keystate; // returns the key pressed by the user or 0 if no key was pressed
          // nonblocking

sleep command

sleep( time in microseconds ); //Script is stops for the given time

compare operators

==, != equal, unequal

>=, <=, >, < greather or equal, less or equal, greather, less

set operators

-> calculator set operator

= C-like set operator

type converting

(float) floating point value

(int) integer value

(string) text value

(bool) boolean value

  

AUTHOR

Rainer Strobel <[email protected]>