HP 33s - Manual (Page 235)

Mathematics Programs 15–13
Program Listing:
Program Lines:
(In RPN mode)
Description

   Starting point for input of coefficients.

 )
 Loop–control value: loops from 1 to 12, one at a
time.

 ! L Stores control value in index variable.
Checksum and length: 35E7 21

   Starts the input loop.

  "!1 1L2 2 Prompts for and stores the variable addressed by i.

   L Adds one to i.

 !  If i is less than 13, goes back to LBL L and gets the
next value.

 !  Returns to LBL A to review values.
Checksum and length: 51AB 15

   This routine inverts a 3 × 3 matrix.

 %  Calculates determinant and saves value for the
division loop, J.

 ! $

  

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! % Calculates E' × determinant = AI – CG.


 

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 ! & Calculates F' × determinant = CD – AF.

  


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