Calculations that will lead you to the highest level of mentalarithmetic.

Test your mental abilities and your logic skills.

Roll a dice with letters, numbers or cards.

Display graphically any mathematical function and its derivative!

Find out how many children you will have in the future.

Sort numbers as fast as possible.

Improve yourself by mixing numbers and letters to find solutions !Try it !

Algorithm measuring love compatibility between you, your friends,your contacts!