Saturday, February 04, 2017

A Math Teacher's Lament

I love my new watch but I wouldn't have bought it if I had looked closer.  The "9" really bothers me.  I spend hours explaining that pi is not 3.14.  Pi is an irrational number that goes on forever.  



used above would not represent 9 exactly.


Jonathan said...

3π - (3π - 9)

Rita Cat said...

Except you don't need the value of pi for that. I prefer something with trig like 9sin pi/2

Jonathan said...

Integral of πdx from 0 to 9/π