HP 33s User Manual page 203

Given the loop–control number ccccccc. fffii, ISG increments ccccccc to ccccccc +
ii , compares the new ccccccc with fff, and makes program execution skip the next
program line if this ccccccc
If current value
final value, continue
loop.
If current value
final value, continue
loop.
For example, the loop–control number 0.050 for ISG means: start counting at zero,
count up to 50, and increase the number by 1 each loop.
The following program uses ISG to loop 10 times. The loop counter
(0000001.01000) is stored in the variable Z. Leading and trailing zeros can be
left off.
  
 
  
  
  
  
 
º È
Press Z to see that the loop–control number is now 11.0100.

fff.
1
  
.
.
.
  
1 
  
  
.
.
.
1
  
.
.
.
  
1 
  
  
.
.
.
2
 2
2
 2
Programming Techniques
If current value
final value,
exit loop.
If current value
final value,
exit loop.
13–19