Matlav

Laboratorio Nº 2 “MATLAB”



















A-1 · A = A · A-1 = I




>>
a=[1,2,3,4,9,6,7,3,9,10;10,2,8,7,6,5,6,3,2,1;2,5,6,9,6,3,1,4,7,20;20,15,14,75,96,51,98,65,23,25;32,0,1,4,8,5,65,95,14,10;25,14,21,45,62,98,66,99,22,33;25,68,74,88,44,20,32,36,36,62;98,96,54,52,32,14,78,54,12,25;58,84,84,65,36,36,63,32,36,39;3,5,8,7,4,5,6,1,2,5]

a =%aquí se declara la matriz a

1 2 3 4 9 6 7 3 9 10
10 2 8 7 6 5 6 3 2 1
2 5 6 9 6 3 1 4 7 20
20 15 14 75 96 51 98 65 23 25
32 0 1 4 8 5 65 95 14 10
25 14 21 45 62 98 66 9922 33
25 68 74 88 44 20 32 36 36 62
98 96 54 52 32 14 78 54 12 25
58 84 84 65 36 36 63 32 36 39
3 5 8 7 4 5 6 1 2 5

>> inv(a) %aquí se le saca la inversa “a” la matriza

ans =

-0.5340 0.0804 0.4725 0.0602 -0.0085 -0.0127 -0.1100 -0.0661 0.1859 -0.7934
0.2475 -0.0847 -0.2163 -0.0285 -0.0053 0.0099 0.0491 0.0414 -0.0792 0.2764
1.6907 0.0568 -1.4251 -0.2042 0.0272 0.0377 0.3343 0.2217 -0.5934 2.4008
-2.0908 -0.0014 1.6948 0.2446 -0.0255 -0.0501 -0.3878 -0.27990.7142 -2.8018
2.1697 0.0505 -1.7788 -0.2443 0.0178 0.0508 0.4204 0.2942 -0.7575 2.8412
-0.7488 -0.0183 0.6180 0.0832 -0.0161 -0.0061 -0.1527 -0.1017 0.2665 -0.9914
-0.4459 -0.0517 0.3704 0.0588 0.0022 -0.0183 -0.0999 -0.0616 0.1617 -0.4721
0.5794 0.0046 -0.5026 -0.0730 0.0136 0.0193 0.12590.0798 -0.2124 0.7573
-1.3184 0.0122 1.1320 0.1618 -0.0141 -0.0360 -0.2693 -0.2012 0.5136 -2.0977
0.2544 -0.0183 -0.1516 -0.0319 0.0047 0.0053 0.0438 0.0402 -0.1002 0.4535


>> a*(inv(a)) %aquí se multiplica la matriz “a” por su inversa

ans =

1.00000.0000 -0.0000 0.0000 -0.0000 0 0 0.0000 -0.0000 0.0000
0.0000 1.0000 -0.0000 0.0000 -0.0000 -0.0000 -0.0000 0.0000 -0.0000 0.0000
-0.0000 0.0000 1.0000 0.0000 -0.0000 -0.0000 -0.0000 0.0000 0.0000 0
-0.0000 0.0000 -0.0000 1.0000 -0.0000 -0.0000 -0.0000 0.0000 0.0000 0.00000.0000 -0.0000 -0.0000 0.0000 1.0000 0.0000 -0.0000 0.0000 -0.0000 0.0000
0.0000 0.0000 -0.0000 0.0000 -0.0000 1.0000 0 0.0000 -0.0000 0.0000
-0.0000 0.0000 -0.0000 0.0000 -0.0000 -0.0000 1.0000 0.0000 -0.0000 -0.0000
0.0000 0.0000 -0.0000 0.0000 -0.0000 0.0000 0 1.0000 0.0000 0.00000.0000 0.0000 -0.0000 0.0000 -0.0000 -0.0000 -0.0000 -0.0000 1.0000 -0.0000
-0.0000 0.0000 0 0.0000 -0.0000 -0.0000 -0.0000 -0.0000 0.0000 1.0000









(A · B)-1 = B-1 · A-1
>>B = %aqui se declara la matriz B

22 96 94 5 36 72 33 19 10
10 22 8 7 6 5 6 3 2 1
2 5 6 9 6 3 1 4 7 20
20 15 14 75 96 51 98 65 23 25
32 0 1 4 8 5 65 95 14 10
25 14 21 45 62 98 66 99 22 33
25 68 74 88 66...