>> A=[1 3 4;6 7 8;8 9 3]

A =

1 3 4 6 7 8 8 9 3

>> B=[1 2 3]

B =

1 2 3

>> C=[1;4;8]

C =

1 4 8

>> a=1;b=4;c=13;>> x1=(-b+sqrt(b^2-4*a*c))/(2*a)

x1 =

-2.0000 + 3.0000i

>> x2=(-b+sqrt(b^2-4*a*c))/(2*a)

x2 =

-2.0000 + 3.0000i

>> x2=(-b-sqrt(b^2-4*a*c))/(2*a)

x2 =

-2.0000 - 3.0000i

>> p=[2 7 1]

p =

2 7 1

>> q=[1 0 3 0]

q =

1 0 3 0

>> p=[1 5 8 1]

p =

1 5 8 1

>> polyval(p,2)

ans =

45

>> p=[1 -3 9 13]

p =

1 -3 9 13

>> roots(p)

ans =

2.0000 + 3.0000i 2.0000 - 3.0000i -1.0000 + 0.0000i

>> p1=[1 -2 1];p2=[1 1];>> conv(p1,p2)

ans =

1 -1 -1 1

>> [c,r]=deconv(p1,p2)

c =

1 -3

r =

0 0 4

>> t=[0:0.5:4]

t =

0 0.5000 1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000

>> k=10 ; v1=[1 2 3]; v2=[4 5 6];>> k*v1

ans =

10 20 30

>> v1+v2

ans =

5 7 9

>> v1*v2Error using * Inner matrix dimensions must agree. >> v1.*v2

ans =

4 10 18

>> t=[0:0.1:10];>> y=10*exp(-t).*sin(5*t) ;>> plot(t,y)>> grid>> xlabel(' tiempo(s)')>> ylabel(' y(t) ')>> title('Senoide amortiguada')>> plot(t,y,'r')>> grid>> plot(t,y,'r *')>> fplot('10*exp(-t).*sin(5*t)',[0,10])>> grid>> xlabel(' tiempo(s)')>> ylabel(' y(t) ')>> title('Senoide amortiguada')>> t=[0:pi/180:4*pi];>> y1=sin(t) ;>> y2=cos(t) ;>> plot(t,y1,'r o',t,y2, 'g -')>> t=0:0.1.10; t=0:0.1.10; |Error: Unexpected MATLAB expression. >> t=0:0.1:10;>> subplot(2,2,1)>> y1=exp(-t) ;>> plot(t,y1)>> subplot82,2,2) subplot82,2,2) |Error: Unbalanced or unexpected parenthesis or bracket. >> subplot(2,2,2)>> y2=t.*exp(-t)

y2 =

Columns 1 through 9

0 0.0905 0.1637 0.2222 0.2681 0.3033 0.3293 0.3476 0.3595

Columns 10 through 18

0.3659 0.3679 0.3662 0.3614 0.3543 0.3452 0.3347 0.3230 0.3106

Columns 19 through 27

0.2975 0.2842 0.2707 0.2572 0.2438 0.2306 0.2177 0.2052 0.1931

Columns 28 through 36

0.1815 0.1703 0.1596 0.1494 0.1397 0.1304 0.1217 0.1135 0.1057

Columns 37 through 45

0.0984 0.0915 0.0850 0.0789 0.0733 0.0679 0.0630 0.0583 0.0540

Columns 46 through 54

0.0500 0.0462 0.0427 0.0395 0.0365 0.0337 0.0311 0.0287 0.0265

Columns 55 through 63

0.0244 0.0225 0.0207 0.0191 0.0176 0.0162 0.0149 0.0137 0.0126

Columns 64 through 72

0.0116 0.0106 0.0098 0.0090 0.0082 0.0076 0.0070 0.0064 0.0059

Columns 73 through 81

0.0054 0.0049 0.0045 0.0041 0.0038 0.0035 0.0032 0.0029 0.0027

Columns 82 through 90

0.0025 0.0023 0.0021 0.0019 0.0017 0.0016 0.0014 0.0013 0.0012

Columns 91 through 99

0.0011 0.0010 0.0009 0.0009 0.0008 0.0007 0.0007 0.0006 0.0005

Columns 100 through 101

0.0005 0.0005

>> y2=t.*exp(-t) ;>> plot(t,y2)>> subplot(2,2,3)>> y3=exp(-t).*cos(t) ;>> plot(t,y3)>> subplot(2,2,4)>> y4=exp(t).*cos(t) ;>> plot(t,y4)>>