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1: Getting Started 27
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
Calculations Using Menus
Using menus to do calculations is easy. You don’t have to remember in
what order to enter numbers and in what order results come back.
Instead, the menus guide you, as in the previous example. All the keys
you need are together in the top row. The menu keys both store numbers
for the calculations and start the calculations.
The MU%C menu can calculate M%C, the percent markup on cost,
given COST and PRICE.
COST PRICE
M%C
Calculator
Memory
Store 4.60
Store 4.10
Calculate 12.20
Keys: 4.60
Display:
Keys: 4.10
Display:
Keys:
Display:
Then the same menu can calculate PRICE given COST and M%C.
COST PRICE M%C
Calculator
Memory
Store 20.00
Store 4.10
Calculate 4.92
Keys: 20
Display:
Keys: 4.10
Display:
Keys:
Display:
Notice that the two calculations use the same three variables; each
variable can be used both to store and calculate values. These are
called built-in variables, because they are permanently built into the
calculator.