Its Pi day – Saturday, March 14 is Pi Day 2015

Why not do something cool in Linux like generate pi to a given number of decimal places.  This can be done by using the tool  bc (Bench Calculator) which is installed in most Linux distributions I have used.

The following command will calculate π to 10 decimal places

The results:  3.1415926532

So enjoy some pi


More and Resources Use –
scale=100 – this specifies the number of decimal places to use for the result
4*a(1) – this returns the arctangent of 1 [which equals 45°: 45 x (π/180), or ¼π] then multiplies by 4 to get π.
bc -l – pipe the complete function string into the bc utility, -l specifies to load the standard math library that’s needed for the arctangent function, a().

Info from: