how can i draw graph of z^2=x^2-y^2 on matlab

Answer 1

[Star Strider]

Is this what you want:

f = @(x,y) (x.^2 - y.^2).^2;                                % Your Function

x = linspace(-10, 10, 150);                                 % X-Range
y = linspace(-10, 10, 150);                                 % Y-Range

[X,Y] = meshgrid(x,y);                                      % Create Matrix Arguments

figure(1)
sh = surf(X, Y, f(X,Y));
set(sh, 'EdgeColor','none')
grid on

[darova]

I think there is something wrong in this line

f = @(x,y) (x.^2 - y.^2).^2;                                % Your Function

should be

f = @(x,y) sqrt(x.^2 - y.^2);                                % Your Function

[darova]

how dare you

[Star Strider]

@darova — See the screenshot I attached to this comment.

[Stephen23]

@darova: thank you for pointing out a minor error in this answer. Following standard practice on this forum, comments on answers are appreciated and can include bug-fixes and improvements.

It is not required to create an entirely new answer for such a small error.

[darova]

As always, my plesure!

[curry]

complex number is not allowed .something wrong?

Answer 2

[Walter Roberson]

syms x y z
eqn = z^2 == x^2 - y^2;
fimplict3(eqn)

Answer 3

[Salwa Aqeel]

dydt=-y(1)+1
y(0)=0

[Walter Roberson]

Could you clarify your Answer? It does not appear to have anything to do with the graph requested in this Question ?

[Sandhiya N]

Z=e^-x(x^2+y^2)

[Walter Roberson]

MATLAB uses exp() to express e^

Also MATLAB does not have any implied multiplication such as between the x and the (x^2 etc