HP 49g+ - Manual (Page 20)

Page 1-8
1./3.*3.
———————
/23.Q3™™™+!¸2.5`
After pressing `the calculator displays the expression:
√
(3.*(5.-1/(3.*3.))/(23.^3+EXP(2.5))
Pressing `again will provide the following value (accept Approx. mode on,
if asked, by pressing !!@@OK#@):
You could also type the expression directly into the display without using the
equation writer, as follows:
R!Ь3.*!Ь5.-
1/3.*3.™
/23.Q3+!¸2.5`
to obtain the same result.
Change the operating mode to RPN by first pressing the H button. Select
the RPN operating mode by either using the \key, or pressing the @CHOOSE
soft menu key. Press the !!@@OK#@ F soft menu key to complete the operation.
The display, for the RPN mode looks as follows:
Notice that the display shows several levels of output labeled, from bottom to
top, as 1, 2, 3, etc. This is referred to as the stack of the calculator. The