The plugin currently provides three shortcodes:

• [convertInt],
• [annuityCertain] and
• [mortgage].

So, for instance, to have a page (not a post) on your site which has a level annuity calculator, create a new page and put the shortcode [annuityCertain] in the text of the page.

By default the plugin will provide both a question with randomised parameters, and a form that just calculates the answer. If you want just the question form add the attribute answer=0. If you want just the answer form add the attribute question=0. E.g. [annuityCertain answer=0] would show just an annuity question form.

The shortcodes don't work in posts.

The plugin will generate mathjax but won't render it. So to get the generated html to look like nice formulae you probably need to install a plugin like Simple Mathjax.