PHP Calc

The CLI calculator you never knew you needed. Also usable as a library!

Usage

Call with an expression to evaluate:

$ calc "42*atan(pi/2)"
42.163162517863

Or call without arguments to go interactive:

$ calc
~ 42*atan(pi/2)
  42.163162517863

As simple as falling off a rock:

use NoccyLabs\PhpCalc\Calculator;

$calc = new Calculator();
$result = $calc->evaluate("42 * atan(pi/2)");

Supported operations:

Supported functions:

Constants:

You can set the precision using the _p variable. If the expression is passed on the command line, prepend the variable followed by a semicolon, such as _p=2;pi for the result 3.14.

Negative numbers and subtraction should be surrounded by whitespace to parse properly. Passing 2-1 will result in 2 and -1, returning 2 and a warning. Passing 2 - 1 will return 1 as expected, as will 2- 1.