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!Ü3.*!Ü5.-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

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