HP 12c financial calculator Manuale Utente

 

File name: hp 12c_user's guide_English_HDPMBF12E44 

Page: 113 of 209   

Printered Date: 2005/7/29   

Dimension: 14.8 cm x 21 cm 

 

Section 10 

There are various reasons why you might want to modify a program you have 
stored in Program memory: to correct a program that turns out to have errors; to 
insert new instructions such as ? to store intermediate results or u to display 
intermediate results; or to replace a u instruction by an t instruction. 

Rather than clearing program memory and keying in the modified program, you 
can modify the program already stored in the calculator. This is called program 
editing. 

To change a single instruction in program memory: 

1. Press fs to set the calculator to Program mode. 
2. Use Ç, Ü, or i. to set the calculator to the program line preceding 

the line containing the instruction to be changed. 

3.  Key in the new instruction. 

For example, to change the instruction stored in program line 05, press 
gi.04, then key in the new instruction that is to be stored in program line 
05. The instruction previously stored in line 05 will be replaced; it is not 
automatically “bumped” into line 06. 

Example: With the last program from the preceding section still stored in the 
calculator, suppose you wanted to use register R

2

 for some other purpose, and so 

you needed to replace the :2 instruction in program line 05 with, say, :6. 
You could change the instruction in line 05 as follows: 

fs 

Sets calculator to Program mode.   

gi.04 

04- 43, 33  07 Sets calculator to program line 

preceding that containing the instruction 
to be changed. 

:6 

6 Keys new instruction into program line 

05, replacing the :2 instruction 
previously there. 

Ê 

06- 43, 33  08 Shows that instruction in program line 

06 has not been changed.