Dev Notes

Conventions

This package works in Planck units, i.e.

$c = ħ = ϵ₀ = k_B = 1$

Note that G ≠ 1.

Conventionally, any scalar function of time, such as \eta, takes as input the logarithm of the scale factor x ≡ log(a). Any scalar function of time which does not operate on x must be marked with an underscore for the variable it does take, for example H_a.