jQuery Calx is an Excel calculation engine and formula parser built as jQuery plugin.
Creating caluclation form in html never been easier and simpler than this:
<form id="calx_form">
<input data-cell="A1" type="text">
<input data-cell="A2" type="text">
<input data-cell="A3" type="text">
<input data-formula="SUM(A1:A3)" type="text">
</form>
<script>
$('#calx_form').calx();
</script>
to build calx from source, you need to do this in terminal (php and java is required, run on *nix environment)
$ cd php-build
$ php build
to build sample calx, with alls required script included, use build-sample
$ cd php-build
$ php build
$ php build-sample
thats all, the compiled and minified js should be updated
For detailed documentation, http://www.xsanisty.com/project/calx2 for jQuery Calx 2.x.
For jQuery Calx 1.x please visit http://www.xsanisty.com/project/calx