Section 10: Program Editing 141
File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 141 of 275
Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm
Note: To add one or more instructions at the end of a program that is not
the last program stored in program memory, use the procedure described
below under Adding Instructions within a Program.
Example:
With the last program from the preceding section stored in the
calculator, suppose you wanted to calculate the net income after taxes. In the RPN
program, you could add a
-
instruction at the end in order to calculate the net
income after taxes. In the ALG program, the tax computed would need to be
subtracted from the income previously stored in R
9
(and this will be done by
changing the sign of the tax to make it negative and then adding it to the income).
You could do this as follows:
Keystrokes
(RPN mode)
Display
fs
Sets calculator to Program mode.
gi.
008
008, 25
Sets calculator to last line keyed
into program memory.
-
009, 30
Keys new instruction into
program line 009.
fs
25.00
Sets calculator back to Run mode.
15000
t
12,000.00
Net income after 20% tax is
subtracted from $15,000
income.
Keystrokes
(ALG mode)
Display
fs
Sets calculator to Program mode.
gi.
011
011, 36
Sets calculator to last line keyed
into program memory.
Þ
012, 16
Keys new instruction into
program line 012.
+
013, 40
Keys new instruction into
program line 013.
:
9
014, 45 9
Keys new instruction into
program line 014.
}
015, 36
Keys new instruction into
program line 015.
fs
25.00
Sets calculator back to Run mode.
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