Calculations Using Menus - HP 17bll+ User Manual

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.
Keys: 4.60
Display:
Keys: 4.10
Display:
Keys:
Display:
Then the same menu can calculate PRICE given COST and M%C.
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.
Store 4.60
Store 4.10
COST
Store 20.0 0
Store 4.1 0
COST
Calculate 4.92
M%C
PRICE
Calculator
Memory
Calculate 12.20
PRICE M%C
Calculator
Memory
1: Getting Started 27