Examples for the use of calc_t

The program timeplots.pro reproduces the plot given in Carroll, Press & Turner [1] for the lookback time. The parameters for the five different models are:

Model	$\Omega_{tot}$	$\Omega_M$	$\Omega_\Lambda$
A	1	1	0
B	0.1	0.1	0
C	1	0.1	0.9
D	0.01	0.01	0
E	1	0.01	0.99