Use the buttons or the number pad of your keyboard to enter numbers and operators.
NOTE: Opera and Firefox assign special functions to some keys of the number pad, so they
won't work with the calculator.
Click "=" or press the [ENTER] key of your keyboard to view the result.
Reset the calculator by clicking "AC" or pressing [ESC] on your keyboard.
Delete the current input by clicking "CI" or pressing [DEL] on your keyboard.
Delete one character of the current input by clicking "←" or pressing the left arrow
key on your keyboard.
Click "Hex" to switch from decimal to hexadecimal mode.
Click "Dec" to switch from hexadecimal to decimal mode.
Close the calculator by clicking the X-button in the title bar or pressing [X] on your
keyboard.
NOTE: The shortkey doesn't work with Safari.
This script was tested with the following operating systems and browsers:
Windows XP:
IE 6, NN 7, Opera 7 + 9, Firefox 2
Mac OS X:
IE 5, Safari 1
If you use another browser or operating system, this script may not work for you - sorry.
Notes:
The calculator looks strange in IE 5 on Mac OS, but it works. Opera has problems when
dragging the calculator, i.e. it selects the text underneath.
Precision of floating point numbers is limited to 13 decimals. This is necessary because
JavaScript isn't very accurate with floating point numbers; for instance, when you add 0.2 to
0.1 with JavaScript, the result will be 0.30000000000000004 instead of the expected 0.3.
JS-Calculator tries to fix this by rounding and limiting the number of decimals. Exception:
numbers in exponential notation, e.g. 1.7953425537109374e-9.
Usage
Adapt the configuration to your needs. Then insert this line into your HTML body (not head!):