Matrix Example test, Identity matrix from [A]/[A]

Description

GSB 8

Matrix division [A]/[A] returns a close approximation to the identity matrix.

Results:
[A] contains LU version of the original [A]
[B] contains the identity matrix from [A]/[A].

To read result matrix [B] elements again, press GSB 0

If you want to do further manual matrix calculations, especially on the DM15L, pressing GSB A, B, C, D or E will read out the corresponding matrix.

USER mode during programming allows indexed STO and RCL of matrix elements. The f MATRIX 0 statement is also essential.
Once the STO and RCL loops reach the dimensioned size of the matrix the GOTO statement is skipped and the next part of the program runs.

John Patterson
jepattersonatactrix.co.nz
http://www.jepspectro.com

Program Resources

Labels

Name	Description	Name	Description
A	Read matrix [A] elements	.1	RCL elements from [A] loop
B	Read matrix [B] elements	.2	RCL elements from [B] loop
C	Read matrix [C] elements	.3	RCL elements from [C]] loop
D	Read matrix [D] elements	.4	RCL elements from [D]] loop
E	Read matrix [E] elements	.5	RCL elements from [E]] loop
8	GSB 8 run program	.6	STO random numbers into [A]

Flags

Number	Description
8	gCF8 Clear complex number flag

Program

Line	Display	Key Sequence	Line	Display	Key Sequence	Line	Display	Key Sequence
000			021	45,16,11	RCL MATRIX A	042	42,21,13	f LBL C
001	42,21, 8	f LBL 8	022	45,16,11	RCL MATRIX A	043	42,16, 1	f MATRIX 1
002	43, 5, 8	g CF 8	023	10	÷	044	42,21, .3	f LBL . 3
003	42,16, 0	f MATRIX 0	024	45,16,12	RCL MATRIX B	045	42 31	f PSE
004	4	4	025	32 12	GSB B	046	u 45 13	USER RCL C
005	42 31	f PSE	026	42 31	f PSE	047	22 .3	GTO . 3
006	36	ENTER	027	43 32	g RTN	048	43 32	g RTN
007	4	4	028	42,21,11	f LBL A	049	42,21,14	f LBL D
008	42,23,11	f DIM A	029	42,16, 1	f MATRIX 1	050	42,16, 1	f MATRIX 1
009	42,16, 1	f MATRIX 1	030	42,21, .1	f LBL . 1	051	42,21, .4	f LBL . 4
010	45,16,11	RCL MATRIX A	031	42 31	f PSE	052	42 31	f PSE
011	42,21, .6	f LBL . 6	032	u 45 11	USER RCL A	053	u 45 14	USER RCL D
012	42 31	f PSE	033	22 .1	GTO . 1	054	22 .4	GTO . 4
013	42 36	f RAN #	034	43 32	g RTN	055	43 32	g RTN
014	2	2	035	42,21,12	f LBL B	056	42,21,15	f LBL E
015	0	0	036	42,16, 1	f MATRIX 1	057	42,16, 1	f MATRIX 1
016	20	×	037	42,21, .2	f LBL . 2	058	42,21, .5	f LBL . 5
017	u 44 11	USER STO A	038	42 31	f PSE	059	42 31	f PSE
018	22 .6	GTO . 6	039	u 45 12	USER RCL B	060	u 45 15	USER RCL E
019	42 31	f PSE	040	22 .2	GTO . 2	061	22 .5	GTO . 5
020	42,26,12	f RESULT B	041	43 32	g RTN	062	43 32	g RTN