Crate constants 

constants is a big (and growing) library of mathematical and physical constants. While in no way revolutionary, I hope that I can save you a few keystrokes with this.

Sources

The source for this data is mainly Wikipedia right now, so expect these to change a little bit. What I mean by this is that I will try to find a more reputable source for each constant, hopefully one that yields higher precision.

Modules

gravitational_pull

In m/s^2.

length

Constants

E

Euler’s number (e)

PI

Archimedes’ constant (π)

SPEED_OF_LIGHT

In m/s.

TAU

The full circle constant (τ)

Functions

feet_to_metres

See metres_to_feet().

metres_to_feet

Convenience function to convert metres to feet.