Contact Form

This form is not for asking math questions.

When contacting us, choose the most appropriate subject and be as specific as possible.
  1. Request a note: choose this, if you didn't find the topic you were looking for. Be specific and describe what exactly you want us to write about.
  2. Technical problems with the site: choose this, if you have found that some part of site is not working as expected. Be specific and describe all actions you did before encountering the error.
  3. Suggestions: choose this, if you know how to improve the site or you just want to suggest a section or category.
  4. Typo/Mistake in notes or calculators: choose this, if you have noticed that a note or calculator has a mistake. Again, be specific!
  5. Comments: choose this, if you want to comment on the site or its part.
  6. Other: under this subject, write anything else.