Parameter Input Range Conversions
Hubble time now, T_H0 (Gy)
1 to < T_H
Hubble constant (km s-1 Mpc-1)
Future Hubble time, T_H (Gy)
> T_H0 to 999999
Lambda density parameter, ΩL
Radiation, matter equal, Seq
100 to 999999
Matter density parameter, Ωm
Total density parameter, Ω
to 1.5
Present Time (Gy)
Upper row Stretch, Supper
0.01 to 20000
Redshift zupper
Lower row Stretch, Slower
0.01 to Supper
Redshift zlower
Number of Steps, Sstep
-100 to 100
Output Scaling:
Display As:

For a Tutorial and the Math used, see this Physics Forums Insights Tutorial.

Credits to Mordred and Marcus for invaluable inputs and to Coburt for a major reprogramming excercise.

Courtesy Relativity-4-Engineers