how to plot this function with figure

In the same figure, plot:1) sin(x), x+1, x3-3, in the rank -2 to 3.14
2)Plot x=8×cos⁡(t),y=4√(sin⁡(t)),z=-4√(sin⁡(t)) ,t= [0,2π]
3)z=(sin√(x^2+y^2 ))/√(x^2+y^2 )

4 个评论

If you have a specific question about a small part of your assignment many volunteers would he happy to help. But you've got to do your own assignment.
this is a littel different from what teacher had taught us and i want to understand it and know how to calculate all in right way
x=(-2:3.18);
y=sin(x);
plot(x,y)
hold on
z=x+1;
plot(x,y,x,z)
hold on
m=x.^3-3;
plot(x,y,x,z,x,m)
is this answer right for part one
You likely want to break x into a larger array.
x=-2:.01:3.18;
You can plot all at once with one plot command
plot(x,y,x,z,x,m);
In addition to David's advice, you'll also need to apply the math in your question, of course. Those functions should be pretty easy to identify.

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