"price-calc" is a WordPress plug-in that shows a nice inter-active price calculator for your product variations on any post or page.
Offer Calc is a simple plugin letting your site visitors to calculate your services at final cost.
Displays read time of your blog post.
Add a shortcode that sums data frm Gravity Forms entries, showing the result as a value, percentage or progressbar.
Publishing and solving mathematical documents, counting with matrices and creating graphs. Plugin is using PhpMathPublisher.
It is a Custom Cash Calculator Made By AA Extension.