# concalc - Online in the Cloud

This is the command concalc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

### PROGRAM:

#### NAME

concalc - console calculator

#### 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.

#### CALCULATIONSYNTAX

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)

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]

-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

Use concalc online using onworks.net services

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