Matlab how to draw x 2 y 2 1 curves

clc;close all;

t=:2*pi;

x=cos(t);

y=sin(t);

plot(x,y);

axis([ 1 1]);

The purpose of the last sentence is to scale the x-y axis so that the drawing area is close to a square;

ps: The answer upstairs is not asked, it's not interesting, and if you won't, you don't want it.

heheezplot

ezplot('sin(x)')

plot > x=:pi

y=sin(x)

plot(x,y)

or plot(x,y,x,cos(x))fplot

fplot('sin(x)',[-pi pi]) These are enough, right? There are also subplots, stems, etc., let's see for yourself.

The method is as follows, please comma circle for reference:

If there is help from the landslide, please celebrate.

Summary. Hello dear, y(x)=sin2x how to draw with matlab, I will answer this question for you: the first step, double-click the matlab software icon, open the matlab software, you can see the interface of the matlab software.

The second step is to use ":4; "Create a one-dimensional array, representing a number every other time from -4 to 4. This one-dimensional array is used as the abscissa of the points of the sinusoidal function.

The third step is to create three functions, which are y1=sin(x); y2=sin(2*x); y3=2*sin(x)。In the fourth step, use the function plot(x,y1,x,y2,x,y3) to plot the three sinusoidal functions in one graph, if you want to plot one of them, you can use the function plot(x,y1) or plot(x,y2) or plot(x,y3) to plot. In the fifth step, use the function title() to add a title to the image of the sinusoidal function, and use the functions xlabel() and ylabel() to add the name of the coordinate axis to the image of the sinusoidal function.

Sixth, use the statement grid on; Add a coordinate dividing line to the image of the sinusoidal function, which also becomes a grid line. In the seventh step, look at the image of the three sinusoidal functions drawn, and pay attention to its title, coordinate axes, and grid lines.

y(x)=sin2x is drawn in matlab.

Speed points. Such a simple question.

Hello dear, y(x)=sin2x how to draw with matlab, I will answer this question for you: the first step, double-click the matlab software icon, open the matlab software, you can see the interface of the matlab software. The second step is to use ":".

4;"Create a one-dimensional array, representing a number every other time from -4 to 4. This one-dimensional array is used as the abscissa of the points of the sinusoidal function. The third step is to create three functions, which are y1=sin(x); y2=sin(2*x); y3=2*sin(x)。

In the fourth step, use the function plot(x,y1,x,y2,x,y3) to plot the image of these three sinusoidal functions in a matching plot, if you want to plot one of them, you can use the function plot(x,y1) or plot(x,y2) or plot(x,y3) to plot. In the fifth step, use the function title() to add a title to the image of the sinusoidal function, and use the functions xlabel() and ylabel() to add the name of the coordinate axis to the image of the sinusoidal function. Sixth, use the statement grid on; Add a dividing line to the image of the sinusoidal function, which also becomes a grid line.

In the seventh step, look at the image of the three sinusoidal functions drawn, and pay attention to its title, coordinate axes, and grid lines.

With MATLAB, you can plot a 3D surface plot of z 2=x 2+y 2 like this:

First, we customize the z(x,y) function with a handle function, ie.

fun=@(x,y)sqrt(x.^2+y.2) Second, use the fmesh function to draw a three-dimensional surface diagram.

fmesh(fun)

Third, mark the name of the coordinate axis.

xlabel('x'),ylabel('y'),zlabel('z')

The above method is suitable for higher versions of MATLAB

Extension]: For earlier versions of MATLAB, this can be done.

x,y]=meshgrid(:5);

z=sqrt(x.^2+y.^2);

mesh(x,y,z)

xlabel('x'),ylabel('y'),zlabel('z');

MATLAB Drawing Z=X 2+Y 2 Drawing 3D Graphics of Z=X 2+Y 2 with MATLAB [x,y]=meshgrid(:2,:2); z=x.

2+y.^2;mesh(x,y,z)shading flatxlabel('x')ylabel('y')zlabel('z')

The cone was truncated by the cylinder (x-1) 2+y 2=1. Then it seems that I forgot about it with points. Tomorrow I will find you the answer is root 2*.

This is a good drawing! x=linspace(-10,8,100);

y = 3*x.^3+2*x.^2+1;

plot(x,y)

Function image: y=3x 3+2x 2+1

In this way, MATLAB is used to find the y=1 (2) 6-(x 2) 2 curve.

In the command window in MATLAB, type:

y=@(x)1/(2*pi)^6-(x.^2)/2;Defining Functions.

Sittan fplot(y) "Draw a curve.

xlabel('x');ylabel('y');Define the coordinate name.

The straight line turned out to be hungry.

How do I plot an image of the y=x 2sin(2x)+exp(x+3) function in MATLAB? It can be done like this:

1. Use the handle function to customize the rolling celery to change its function, that is.

fun=@(x)x.^2.*sin(2*x)+exp(x+3);

2. Use the fplot function to plot the graph of the function, that is, the first difference.

fplot(fun,[-10 10])

3. Use the xlabel and ylabel functions to mark the name of the coordinate axis, that is.

xlabel('x'),ylabel('y'4. Achieve ** and effect.

Use the MATLAB plot() function command to plot the functions y=x 2, y=x, and y=2x.

>>x=-10:1:10;%x

>>y=x.^2;y1=x;y2=2*x;Calculate the y-value

>>plot(x,y,x,y1,x,y2) % plot

>>xlabel('x');ylabel('y');The name of the axis

>>legend('y=x^2','y=x','y=2x'% legend