Section 8: Programming Basics 105

Example: Your office supplies dealer is selling selected stock at 25% off. Create a program that calculates the net cost of an item after the discount is subtracted and the $5 handling charge is added.

First, we’ll manually calculate the net cost of an item listing for $200.

Keystrokes

Display

 

(RPN mode)

 

 

 

200

200.

Keys in cost of item.

\

200.00

Separates cost of item from

 

 

percentage to be keyed in next.

25b

50.00

Amount of discount.

-

150.00

Price less discount.

5

5.

Handling charge.

+

155.00

Net cost (price less discount plus

 

 

handling charge).

Keystrokes

Display

 

(ALG mode)

 

 

 

200

200.

Keys in cost of item.

-

200.00

Separates cost of item from

 

 

percentage to be keyed in next.

25b

50.00

Amount of discount.

+

150.00

Price less discount.

5

5.

Handling charge.

}

155.00

Net cost (price less discount plus

 

 

handling charge).

Next, set the calculator to Program mode and erase any program(s) already stored:

Keystrokes

Display

 

fs

 

Sets calculator to Program mode.

fCLEARÎ

000,

Clears program(s).

Finally, press the keys that we used above to solve the problem manually. Do not key in 200; this number will vary each time the program is used. Don’t be concerned right now about what appears in the display as you press the keys; we’ll discuss that later in this section.

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