Comment by izietto
4 years ago
Actually I find it pretty clever because pi value may change in a programming context, as can change its precision
4 years ago
Actually I find it pretty clever because pi value may change in a programming context, as can change its precision
We’ve been wrong before :)
What, you need more than 3.2f?
On more serious note 22.0/7 or 3.1 in base 7 is a rather good approximation sufficient to quite a few problems and good to calculate things in one’s head.
Fun fact, 22/7 is only accurate to one part in 2,500, or 0.04%, netting you one extra digit (i.e 3.14 is less accurate with 3 digits but 3.142 is more).
Most remember 3.14159 which is way better than 22/7, but pi has an even better unusual rational approximation, 355/113 gets you two extra digits, it is accurate to one part in 12 million, or 0.000008% . So you have to go to 3.1415927 to beat it.
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