plot(sin(t)*sin(t))/t
before executing plot(sin(t)*sin(t))/t it
clear using clf()
and the execute this command plot(sin(t)*sin(t))/t
Python-3.4.3 Using-plot-command-interactively 08-09 min 10-20 sec
Answers:
You typed wrong command. Correct command is plot((sin(t)*sin(t))/t)
My command was executed. I was telling solution to others.