how do you memorize pi

you don't.

Altough you can not fully memorize pi as it is infinite, a good method is to express the numbers as tangible things in your head such as fruits or colors.

it is infinate so you cant just use 3.14 its easier and pretty accurate

Remember the sequence 113355, and then shift the first three digits under the las three to form a fraction.

355/113 = 3.141593 (6dp) is pi correct to 6 decimal places.

That is neat last anon - a little weird, but neat all the same.