Compute π Function

Project: Compute π Function

Write a function that computes and returns the value π which can be easily computed with standard math functions using one of the formula:

atan(1.0)*4.0
atan2(0.0, -1.0)
acos(-1.0)
2.0*acos(0.0)

See [[Pi]]

Output

$ perl ComputePi3.pl "abs" is not exported by the Math::Trig module Can't continue after import errors at ComputePi3.pl line 9. BEGIN failed--compilation aborted at ComputePi3.pl line 9.

Solution