It takes an "infinite series" to define it:
pi / 4 = 1 - 1/3 + 1/5 - 1/7 ..... ( to infinity, but the pattern is clear, unlike the unpredictable 3.1415926.... )
There are many more similar series to define pi, this is the neatest.
It takes an "infinite series" to define it:
pi / 4 = 1 - 1/3 + 1/5 - 1/7 ..... ( to infinity, but the pattern is clear, unlike the unpredictable 3.1415926.... )
There are many more similar series to define pi, this is the neatest.