Utilizacion De Matblab

UTILIZACION DE MATLAB

1) Con las siguientes matrices realice las operaciones que se piden (invéntelas).
Solución:
A=[2 4;-3 4]

A =

2 4
-3 4

>> B=[2 3 4;-2 4 1]B =

2 3 4
-2 4 1

>> C=[5 -2;4 3]

C =

5 -2
4 3

>> C+A

ans =

7 2
1 7

>> -C+A

ans =

-36
-7 1

>> -A+(C*2*A)

ans =

30 20
1 52

>> (3*A)-(2.5*B)
??? Error using ==> -
Matrix dimensions must agree.

>> (B/2)+(6*A)
??? Errorusing ==> +
Matrix dimensions must agree.

>> (3*A)*(2.3*B)

ans =

-27.6000 151.8000 82.8000
-96.6000 48.3000 -55.2000

>>-(3*C)*(2*B)

ans =

-84 -42 -108-12 -144 -114

2) Diga si las siguientes matrices son invertibles y halle en caso tal su inversa. Si no lo son dígalo ( invéntelas)

Solución:

A =[2 4;3 -2]

A=

2 4
3-2

inv(A)

ans =

0.1250 0.2500
0.1875 -0.1250

>> B=[3.24 2.24 2.68;2.39 1.68 3.65;5.64 6.35 2.63]

B =

3.2400 2.2400 2.6800
2.3900 1.68003.6500
5.6400 6.3500 2.6300

inv(B)

ans =

1.3929 -0.8262 -0.2728
-1.0619 0.4896 0.4025
-0.4233 0.5896 -0.0067

>>C=[2.635 2.426 4.352 6.352 4.5898.652;5.624 5.698 6.354 9.652 8.759 4.658;4.987 6.456 5.123 4.658 4.652 9.826;2.653 8.645 8.652 7.917 5.236 4.635;5.569 5.632 7.658 9.364 8.658 7.658;5.658 6.458 9.258 4.635 4.896 8.587]

C =2.6350 2.4260 4.3520 6.3520 4.5890 8.6520
5.6240 5.6980 6.3540 9.6520 8.7590 4.6580
4.9870 6.4560 5.1230 4.6580 4.6520 9.8260
2.6530 8.64508.6520 7.9170 5.2360 4.6350
5.5690 5.6320 7.6580 9.3640 8.6580 7.6580
5.6580 6.4580 9.2580 4.6350 4.8960 8.5870

inv(C)

ans =

0.3770...