HP 33S Owner's Manual

Programming Techniques
13–25
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
Program Lines:
(In RPN mode)
Description:
  
This routine collects all known values in three
equations.
 
Prompts for and stores a number into the variable
addressed by i.
  
Adds 1 to i and repeats the loop until i reaches
13.012.
  
  
When i exceeds the final counter value, execution
branches back to A.
Label J is a loop that completes the inversion of the 3
×
3 matrix.
Program Lines:
(In RPN mode)
Description:
  
This routine completes inverse by dividing by
determinant.
 
Divides element.
  
Decrements index value so it points closer to A
  
Loops for next value.
 
Returns to the calling program or to
 
.
Equations with (i)
You can use (i) in an equation to specify a variable indirectly. Notice that

means the variable specified by the number in variable i (an indirect reference),
but that i or

means variable i.
The following program uses an equation to find the sum of the squares of variables
A through Z.

HP 33S Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Silver
Digits	10 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157 x 16 x 81 mm