HP49-HP50: list of var in an equation

[Gil]

Thanks, David, "your" LNAME command is the one I was looking for.

By the way, is there a built-in command or an easy way to get the coefficient of
Y='2.5*x + 7.5*b + 35* c'

apart evaluating Y for
(x=1, b and b = 0)
(b=0, x and c = 0)
(c=1, a and b = 0)?

Regards,
Gil