HP 33s - Manual (Page 237)

Mathematics Programs 15–15
Program Lines:
(In RPN mode)
Description
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! Calculates G' × determinant = DH – EG.
¶
! Stores D'.
L
! Stores I'.
%
! Stores E'.
&
! Stores F'.
'
! Stores H'.
! L Sets index value to point to last element of matrix.
$ Recalls value of determinant.
Checksum and length: 0FFB 222
This routine completes inverse by dividing by
determinant.
!ª1 1L2 2 Divides element.
L Decrements index value so it points closer to A.
! Loops for next value.
! Returns to the calling program or to !.
Checksum and length: 1FCF 15
This routine multiplies a column matrix and a 3 × 3
matrix.
Sets index value to point, to last element in first row.
%
Sets index value to point to last element in second