matlab ejercicios_programacion

%OPRACIONES SUMA:

>> 4325+45603

ans =

49928

>> 3289+3333

ans =

6622

>> %OPERACION DIFERENCIA:

>> 444-222

ans =

222

>> 1234534-2333543

ans =

-1099009

>> %OPRACION MULTIPLICACION

>> 343*212

ans =

72716

>> 545*789

ans =

430005

>> %OPERACIONES DIVISION:

>> 3488/2222

ans =

1.5698

>> 2222/3488

ans =

0.6370

>> %OPERACIONES CON MATRICES:

>> A=[22;33];

>> B=[12;36];

>> C=[46;27];

>> D=[04;48];

>> F= A+B

F =

34

69

>> G= B-D

G =

8

-12

>> H=(D.*C)/(A+B)

H =

0 2.6667

0 18.7826

>> %EJERCICIO N0º1

>> %GRAFICA DE LA FUNCION SENO

>> x=linspace(0,2*pi,30);

>> y=sin(x);

>> plot(x,y)

>>

>> %EJERCICIO Nº2

>> %GRAFICA LA FUNCION SENO Y COSENO


>> y=sin(x);

>> z=cos(x);

>> plot(x,y,x,z)

>>

>> %EJERCICIO Nº3

>> %grafico por la intervencion de una matriz, y el otro un vector, la orden plot

>> %representa cada columna de la matriz respecto del vector.

>>


>> y=sin(x);

>> z=cos(x);

>> W=[y,z];

>> %crea una matriz con las funciones seno y coseno

>> plot(x,W)%representa las columnas de w frente a x

Error using plot

Vectors must be the same lengths.


y=sin(x);

z=cos(x);

W=[y;z];

%crea una matriz con las funciones seno y coseno

plot(x,W)%representa las columnas de w frente a x

>> %EJERCICIO

>> %EJERCICIO Nº4

>> %grafico por la intervencio de una matriz, y el otro un vector, la orden plot.

>> %5

>> %representa cada columna de la amtriz respecto del vector.

>>


>> y=sin(x);

>> z=cos

Error using cos

Not enough input arguments.


y=sin(x);

z=cos(x);

>> W=[y;z];

>> plot(w,x)

Undefined function or variable 'w'.


y=sin(x);

z=cos(x);

W=[y;z];

plot(w,x)

Undefined function or variable 'w'.


y=sin(x);

z=cos(x);

W=[y;z];

plot(W,x)

>>

>> %EJERCICIO Nº5

>> %grafico de figura geometrica x=linspace(0,2*pi,30);

y=sin(x);

z=cos(x);

W=[y;z];

plot(W,x)

>>

>> %EJERCICIO Nº5

>> %grafico de figura geometrica


y=sin(x);

z=cos(x);

W=[y;z];

plot(y,z) %grafica de circunferencia

>>

>> %EJERCICIO Nº6

%grafico de figuras geometricas

x=linspace(0,2*pi,05);

y=sin(x);

z=cos(x);

plot(y,z) %grafica el cuadrodo

>>

>> %EJERCICIO Nº6



y=sin(x);

z=cos(x);

plot(y,z) %grafica el decagono

>>

>> %EJERCICIO Nº8



y=sin(x);

z=cos(x);

plot(y,z) %grafica el icosagono

>>

>> %EJERCICIO Nº8

>> %grafico de figuras geometricas

>>

>> %EJERCICIO Nº9

>> %GRAFICA DE UN CONJUNTO DE PUNTOS QUE DEFINE A LAS TEMPERATURAS EN EL TRANSCURSO DE LA SEMANA

>> temps=[12 8 18;15 9 22; 12 5 19; 97 11;11 11 21;15 8 24;14 34 24];

Error using vertcat

CAT arguments dimensions are not consistent.

>> temps=[12 8 18;15 9 22; 12 5 19; 9 7 11;11 11 21;15 8 24;14 34 24];

>> d=1:7; %numero de dias de la semana

>> plot(d,temps)

>> xlabel('Dias de la semana'), y label('grados Celsios')

Error: "y" was previously used as a variable,

conflicting with its use here as the name of a function or command.

See MATLAB Programming, "How MATLAB Recognizes Function Calls That Use Command Syntax"

for details.

>> xlabel('Dias de la semana'),ylabel('grados Celsios')

>> title('REGISTROS DE LAS TEMPERATURAS ALTAS EN TRES CIUDADES')

>> %EJERCICIO Nº9

%GRAFICA DE UN CONJUNTO DE PUNTOS QUE DEFINE A LAS TEMPERATURAS EN EL TRANSCURSO DE LA SEMANA

temps=[12 8 18;15 9 22; 12 5 19; 9 7 11;11 11 21;15 8 24;14 34 24];

>>

>> temps=[12 8 18;15 9 22; 12 5 19; 9 7 11;11 11 21;15 8 24;14 34 24];

d=1:7; %numero de dias de la semana

plot(d,temps)

xlabel('Dias de la semana'),ylabel('grados Celsios')

title('REGISTROS DE LAS TEMPERATURAS ALTAS EN TRES CIUDADES')

>>

>> %EJERCICIO Nº10

>> %ejuste de curvas por minimo cuadrado

>> x=[0.1.2.3.4.5.6.7.8.91];

x=[0.1.2.3.4.5.6.7.8.91];

|

Error: Unexpected MATLAB expression.

>> %EJERCICIO Nº10

%ejuste de curvas por minimo cuadrado

x=[0.1.2.3.4.5.6.7.8.9];

x=[0.1.2.3.4.5.6.7.8.9];

|


>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

>> y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

>> n=2

n =

2

>> p=polyfit(x,y,n);

Error using polyfit (line 48)

X and Y vectors must be the same size.

>> xi=linspace(0,1,100);

>> z=polyval(p,xi);

Undefined function or variable 'p'.

>> plot(x,y,'0',x,y,xi,z,':')

Error using plot

Vectors must be the same lengths.

>> xlabel('X'), ylabel('y=f(x)');

>> title('AJUSTE CUADRATICO DE LA CURVA')

>>

>> %EJERCICIO Nº10


x=[0.1.2.3.4.5.6.7.8.9];

x=[0.1.2.3.4.5.6.7.8.9];

|


%EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

n =

2

p=polyfit(x,y,n);

xi=linspace(0,1,100);

z=polyval(p,xi);

plot(x,y,'O',x,y,xi,z,':')

xlabel('X'), ylabel('y=f(x)');

title('AJUSTE CUADRATICO DE LA CURVA')

x=[0.1.2.3.4.5.6.7.8.9];

|


>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

n =

2

p=polyfit(x,y,n);


z=polyval(p,xi);




n =

2

n =

|

Error: Expression or statement is incomplete or incorrect.

>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




n =

2



>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




n =

2



>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




n =

2



>> %EJERCICIO Nº10


x=[0.1.2.3.4.5.6.7.8.91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




x=[0.1.2.3.4.5.6.7.8.91];

|


>> %EJERCICIO Nº10


x=[0,1,2,3,4,5,6,7,8,91];

y=[-,447 1,978 3,28 6,16 7,08 7,34 7,66 9,56 9,48 9,40 11,2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




y=[-,447 1,978 3,28 6,16 7,08 7,34 7,66 9,56 9,48 9,40 11,2];

|

Error: Expression or statement is incorrect--possibly unbalanced (, {, or [.

>> %EJERCICIO Nº11

t=(1/8:2/8:15/8)'*pi;

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




n =

2



>> %EJERCICIO Nº10


x=[0.1.2.3.4.5.6.7.8.91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




x=[0.1.2.3.4.5.6.7.8.91];

|


>>

>> %EJERCICIO Nº11

>> %EJERCICIO Nº10


x=[0.1.2.3.4.5.6.7.8.91];

y=[-.447 1.978 3.28 6.16 7.08 7.34 7.66 9.56 9.48 9.40 11.2];

n=2

p=polyfit(x,y,n);


z=polyval(p,xi);




x=[0.1.2.3.4.5.6.7.8.91];

|


>> %EJERCICIO Nº11

>> t=(1/8:2/8:15/8)'*pi;

>> x=sin(t);

>> y=cos(t);

>> fill(x,y,'r')

>> axis('square')

>> text(-.11,0,'STOP')

>> title('SEÑALIZACION DE PARE EN SUPERFICIE ROJA')

>>

>> %EJERCICIO Nº11

t=(1/8:2/8:15/8)'*pi;

x=sin(t);

y=cos(t);

fill(x,y,'r')

axis('square')

text(-.11,0,'STOP')

title('SEÑALIZACION DE PARE EN SUPERFICIE ROJA')

>>

>> %EJERCICIO Nº12

>> %GRAFICA 3D

>> t=0:pi/50:10*pi;

>> plot3(sin(t),cos(t),t)

>> title('Elice'),xlabel('sin(t)'),ylabel('cos(t)'),zlabel('t')

>>

>> %EJERCICIO Nº12

%GRAFICA 3D

t=0:pi/50:10*pi;

plot3(sin(t),cos(t),t)

title('Elice'),xlabel('sin(t)'),ylabel('cos(t)'),zlabel('t')

>>

>> %EJERCICIO Nº14

>> %grafica de malla

>> x=-7.5:.5:7.5;

>> y=x;

>> [X,Y]=meshgrid(x,y);

>> R=sqrt(X.^2+Y.2^)+eps;

R=sqrt(X.^2+Y.2^)+eps;

|


>> R=sqrt(X.^2+Y.^2)+eps;

>> Z=sin(R)./R;

>> Z=sin(R)./R;

>> mesh(X,Y,Z)

>> %EJERCICIO Nº15

>> %grafica de malla

>> y=x;

>> x=-7.5:.5:7.5;

>> [X,Y]=meshgrid(x,y);

>> R=sqrt(X.^2+Y.^2)+eps;

>> Z=sin(R)./R;

>> surf(X,Y,Z)

>> mesh(peaks)

>> title('Grafica con una coloracion de los picos')

>>

>> %EJERCICIO Nº15

%grafica de malla

y=x;

x=-7.5:.5:7.5;

[X,Y]=meshgrid(x,y);

R=sqrt(X.^2+Y.^2)+eps;

Z=sin(R)./R;

surf(X,Y,Z)

mesh(peaks)

title('Grafica con una coloracion de los picos')

>> %EJERCICIO Nº15

%grafica de malla

y=x;

x=-7.5:.5:7.5;

[X,Y]=meshgrid(x,y);

R=sqrt(X.^2+Y.^2)+eps;

Z=sin(R)./R;

surf(X,Y,Z)

mesh(peaks)

title('Grafica con una coloracion de los picos')

>>

>> %EJERCICIO Nº16

>> %dadas las siguientes expresiones matematicas representelo en expresiones simbolicas.

>>

>> f=a*x^2+b*x+c'

Undefined function or variable 'a'.

>> f='a*x^2+b*xc'

f =

a*x^2+b*xc

>> f='a*x^2+b*x+c'

f =

a*x^2+b*x+c

>> f'= d/dx sqrt(2x.^2+3x+5)

f'= d/dx sqrt(2x.^2+3x+5)

|

Error: The expression to the left of the equals sign is not a valid target for an

assignment.

>> f'=d/dx sqrt(2x^2+3x+5);

f'=d/dx sqrt(2x^2+3x+5);

|


assignment.

>> f'=d/dx sqrt(2x.^2+3x+5);

f'=d/dx sqrt(2x.^2+3x+5);

|


assignment.

>> f'='d/dx sqrt(2x^2+3x+5)';

f'='d/dx sqrt(2x^2+3x+5)';

|


assignment.

>> f'=d/dx sym('(1 + sqrt(2x^2+3x+5))');

f'=d/dx sym('(1 + sqrt(2x^2+3x+5))');

|


assignment.

>> '3*cos(w)/sin(2*W/W+1))'

ans =

3*cos(w)/sin(2*W/W+1))

>> %5

>>

>> p='(3*s^2+2*s+1)/4*s-2)'

p =

(3*s^2+2*s+1)/4*s-2)

>> %6

>>

>> r='exp(-2*t)'

r =

exp(-2*t)

>> %7

>> y='a*x(exp(5*t-3))'

y =

a*x(exp(5*t-3))

>>

>> %EJERCICIO Nº17

>>

>> %EJERCICIO Nº18

>> % el uso de los ejes de posicion permite que se defina la situacion

>> %de los ejes dentro de la ventana de la figura

>> axes('position',[.1.1.8.6])

axes('position',[.1.1.8.6])

|


>> clfaxes('position',[.1.1.8.6])

clfaxes('position',[.1.1.8.6])

|


>> axes('Position',[.1.1.8.6])

axes('Position',[.1.1.8.6])

|


>> clfaxes('position',[.1.1.8.6])

clfaxes('position',[.1.1.8.6])

|


>> axes('Position',[.1.1.8.6]);

axes('Position',[.1.1.8.6]);

|


>> axes('Position',[.1,1,8,6])

>> axes('Position',[1,1,8,6])

>> axes('Position',[1.1,8.6])

Error using axes

Value must be a 4 element vector

>> axes('Position',[.1.8.6])

axes('Position',[.1.8.6])

|



>> mesh(peaks(20));


>> pcolor([ 1:10;1:10 ]);

>>


mesh(peaks(20));

axes('Position',[.1,7,8,2])

pcolor([ 1:10;1:10 ]);

>>


mesh(peaks(20));


pcolor([ 1:10;1:10 ]);


mesh(peaks(20));


pcolor([ 1:10;1:10 ]);

>>


mesh(peaks(20));



mesh(peaks(20));


pcolor([ 1:10;1:10 ]

pcolor([ 1:10;1:10 ]

|

Error: Expression or statement is incorrect--possibly unbalanced (, {, or [.

>> axes('Position',[.1.1.8.6])

mesh(peaks(20));


pcolor([1:10;1:10]);


|


>> axes('Position',[1,1,8,6])

mesh(peaks(20));

axes('Position',[1,7,8,2])

pcolor([ 1:10;1:10 ]);

>> axes('Position',[1.1.8.6])

mesh(peaks(20));

axes('Position',[1,.7.8.2])

pcolor([ 1:10;1:10 ]);

axes('Position',[1.1.8.6])

|


>> %EJERCICIO Nº19

>> %grafica de la tangente

>> x=0:.01:pi/2;

>> plot(x,tan(x))

>>

>> %EJERCICIO Nº20

>> %grafica de la tangente

>> x=0:.01:pi/2;

>> plot(x,tan(x))

>> axis([0 pi/2 0 10])

>>

>> %EJERCICIO Nº20

%grafica de la tangente

x=0:.01:pi/2;

plot(x,tan(x))

axis([0 pi/2 0 10])

>>

>> %EJERCICIO Nº21

>> %grafica de matrices Z

>> m=10;

>> n=5;

>> for i=1:m

for j=11:n

Z(i,j)=j/i;

end

end

>> Z=[1.00 2.00 3.00 4.00 5.00;.50 1.00 11.50 2.00 2.50; 0.33 0.67 1.00 1.33 1.67; 0.11 0.22 0.33 0.44 0.56; 0.10 0.20 0.30 0.40 0.50]

Z =

1.0000 2.0000 3.0000 4.0000 5.0000

0.5000 1.0000 11.5000 2.0000 2.5000

0.3300 0.6700 1.0000 1.3300 1.6700

0.1100 0.2200 0.3300 0.4400 0.5600

0.1000 0.2000 0.3000 0.4000 0.5000

>> %EJERCICIO Nº22

>> %grafica en coordenadas cartesianas

>> t=0:.01:2*pi;

>> x=cos(t).*cos(2*t).*sin(2*t);

>> y=sin(t).*cos(2*t).*sin(2*t);

>> plot(x,y),title ('Cartesiano')

>>

>> %EJERCICIO Nº23

>> %conversion de coordenadas cartesianas a polar

>> t=0:.01:2*pi;

>> x=cos(t).*cos(2*t).*sin(2*t);

>> y=sin(t).*cos(2*t).*sin(2*t);

>> plot(x,y),title('cartesiano')

>> [theta,rho]=cart2pol(x,y);

>> polar(theta,rho),title('Polar')

>>

matlab ejercicios_programacion

Documents

Transcript of matlab ejercicios_programacion