Table 2-3 Simple Arithmetic Calculations in RPN Mode

Keys

Display

Description

RPN Stack

 

 

 

 

 

 

 

3I4

 

 

Inputs the numbers and the

 

 

 

 

 

 

 

 

 

 

operation in the first set of

 

 

 

 

 

 

Previous

 

+

 

 

parentheses. Intermediate

 

 

 

 

results are displayed. Note

 

Value

 

 

 

 

 

 

the (+) and (RPN)

 

Previous

 

 

 

 

annunciators.

 

Value

 

 

 

 

 

 

Previous

 

 

 

 

 

 

Value

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

5I6

+

Inputs the numbers and the operation in the second set of parentheses.

Intermediate results are displayed. Note the (+) annunciator.

Previous

Value

Previous

Value

7

11

*

 

Finishes the operation and

 

 

 

 

displays the results.

 

 

Previous

 

 

 

 

 

 

Value

Previous

Value

Previous

Value

77

Pressing Ior =when you are not entering a number duplicates the number on Level 1. That is, the number on Level 1 is pushed on the stack, making Levels 1 and 2 equal. In the example above, pressing Iafter *duplicates 77 on the stack, making Levels 1 and 2 equal. See Figure 5.

16 Mathematical Calculations