Shohidul Islam Apu

CF7 Math Captcha is a lightweight plugin that adds a math captcha field to your Contact Form 7 forms. 
It helps reduce spam without using Google reCAPTCHA. 
Very simple to use: just add <code>[mathcaptcha* captcha-field]</code> to your Contact Form 7 form.

Math Captcha for Contact Form 7


Nice, clean and lightweight solution for adding Math Captcha to Contact Form 7. Works smoothly and keeps spam away without extra hassle. Good job, bro! 👏


Keeps spam away without extra hassle

Adds a simple math captcha field for Contact Form 7 to prevent spam submissions.

ascom

The KaTeX WordPress plugin integrates the super-fast <a href="https://github.com/Khan/KaTeX" rel="nofollow ugc">KaTeX math typesetting engine</a> with your WordPress website. The plugin allows you to put LaTeX in a <code>[latex]...[/latex]</code> shortcode, and beautiful math appears on your post or page.
The plugin also has an option to use the excellent <a href="http://www.jsdelivr.com" rel="nofollow ugc">jsDelivr CDN</a> to load the KaTeX scripts, further increasing the performance of the plugin.
Equations in <code>[latex display="true"]...[/latex]</code> will be rendered in display mode (rather than inline mode) and centered on its own line.
<a href="https://andrewsun.com/projects/wp-katex/" rel="nofollow ugc">Plugin Website</a>

WP-KaTeX

Integrates the super-fast KaTeX LaTeX equation typesetting engine with WordPress. Create beautiful, yet performant math in your posts and pages.

Math Captcha for Contact Form 7 vs WP-KaTeX