NAME
Cosmology_solveFriedmannEqn
SYNOPSIS
Cosmology_solveFriedmannEqn(real,intent(IN) :: timeEndAdvance,
real, intent(IN) :: dt)
DESCRIPTION
Numerically solve the Friedmann equation, deriving the scale factor at time t+dt from the scale factor at time t. This version assumes a matter-dominated universe.
ARGUMENTS
timeEndAdvance - the time at the end of last timestep advance dt - time step