# Who is the mother of math?

## Who is the mother of math?

Hypatia (c. 355–415) was the first woman known to have taught mathematics.

## Why is Pi 22 divided 7?

Pi is an irrational number—you can’t write it down as a non-infinite decimal. In the past, many math books listed Pi as 22/7. Again, this is just an approximation but it is better than the value of 3 (actually 22/7 is closer to Pi than just writing 3.14).

## Does 22 7 go forever?

That’s because pi is what mathematicians call an “infinite decimal” — after the decimal point, the digits go on forever and ever. Though it is an irrational number, some use rational expressions to estimate pi, like 22/7 of 333/106. (These rational expressions are only accurate to a couple of decimal places.)

## Will Pi ever end?

: Pi, or the Greek letter π, is a mathematical constant equal to the ratio of a circle’s circumference to its diameter — C/d. It lurks in every circle, and equals approximately 3.14. (Hence Pi Day, which takes place on March 14, aka 3/14.)