4 ms·
Iirc there's a certain site that requires you to solve a differential equation as captcha. The name escapes my mind.
by sigkill 14y ago
Iirc there's a certain site that requires you to solve a differential equation as captcha. The name escapes my mind.
- lotharbot 14y agoOne of the comics I read requires you to solve a simple calculus problem before you can comment, as a pseudo-captcha. http://spikedmath.com/ http://spikedmath.com/
- sigkill 14y agoThat's cool. By the way, I got mine as well. It's the Quantum bit service. Link - http://random.irb.hr/signup.php http://random.irb.hr/signup.php