how can i create a surf (y=0) by surf and linspace functions?

hi friends

i want to create a surf y=0 in a domain by surf and linspace functions with this code:

hsp = surf(linspace(-0.3,1.3,200),zeros(200)+0.125,linspace(-0.251776695,0.501776695,200));

but it errors.

for the case z=0 the following code is correct:

hsp = surf(linspace(-0.3,1.3,200),linspace(-0.251776695,0.501776695,200),zeros(200)+0.125);

but for y=0 it errors:

Z must be a matrix, not a scalar or vector.

help me if you can.

thanks a lot

[John D'Errico]

Please don't just keep on asking the same question repeatedly.

Answer 1

[Stephen23]

All of the syntax examples given for surf plot Z as function of X and Y, even if only implicitly by supplying a matrix of Z values.

As an alternative, consider using the lower-level function surface , which allows for parametric surfaces.

[Moein]

thank you stephen

but i'm new to matlab.

can you write the code similar my code by using surface functon?

because i used surface in the code but it errors yet.

[Stephen23]

If the surf works correctly (with Z as a function of X and Y), why not just use this standard functionality and rotate the surface inside the plot?