The temperature though at two is the same as it was at one, T1 so it's still a temp at T1, and this temperatures is at T2.

This stylesheet takes a document containing a number of elements of the form <temperature temp="30"/>, and translates them into a PostScript stack rendering a line graph of those temperatures.

Keep cool - you fall asleep faster and sleep better if the bedroom is cooler. A lower room temperature lowers core body temp, and helps you go to sleep.