MATLAB: Plane y=x

MATLABplanema

Hei , I want to drow this planes y=x,z=x,z=y in 3D using fsurf but dont know fow to set the function?

Best Answer

% plane z=x,
figure
hold on
fsurf(@(x,y) x)
% plane z = y
fsurf(@(x,y) y)
view(3)

Related Solutions

MATLAB: Simplify(~(~(x | y) & ~(y | z)))

Remember these equivalences ( De Morgan's laws ):

 ~(x | y) <==>  ~x & ~y
 ~(x & y) <==>  ~x | ~y

Then

~(~(x | y) & ~(y | z))         ==>
~((~x & ~y) & (~y & ~z))       ==>
~(~x & ~y) | ~(~y & ~z)        ==>
~~x | ~~y | ~~y | ~~z          ==>
x | y | y | z                  ==>
x | y | z

Applying the operations from the outside to the inside is faster:

~(~(x | y) & ~(y | z))         ==>
~~(x | y) | ~~(x | z)          ==>
x | y | y | z

MATLAB: How to plot x^2+z^2=9 above the xy plane and between y=-1 and y=2

How about:

syms x y z;
[x,y]=meshgrid(-10:1:10);
z = abs(sqrt(9-x.^2));
surf(x,y,z);
ylim([-1 2])

Best Answer

Related Solutions

MATLAB: Simplify(~(~(x | y) & ~(y | z)))

MATLAB: How to plot x^2+z^2=9 above the xy plane and between y=-1 and y=2

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