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Reverse Polish Notation (RPN)
Reverse Polish Notation (RPN)
The HP Prime provides you with three ways of entering objects in
Home view:
Textbook
•
An expression is entered in much the same way was if you
were writing it on paper (with some arguments above or
below or others). In other words, your entry could be two-
dimensional, as in the following example:
Algebraic
•
An expression is entered on a single line. Your entry is always
one-dimensional. The same calculation as above would
appear like this is algebraic entry mode:
Advanced RPN (where RPN stands for Reverse Polish
•
Notation).
The arguments of the expression are entered first followed by
the operator. The entry of an operator automatically
evaluates what has already been entered. Thus you will need
to enter a two-operator expression (as in the example above)
in two steps, one for each operator:
Step 1: 5
h
displayed in history.
Step 2:
Szn
applied to the previous result.
You choose your preferred entry method from page 1 of the
Home Settings screen (
starting on page 27 for instructions on how to choose settings.
RPN is available in Home view, but not in CAS view.
– the natural logarithm of 5 is calculated and
– is entered as a divisor and
SH
). See "System-wide settings",
2
43
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