Matlab how to make a 3d plot of the following data

Hello all,

A seemingly simple question but I just cant find an answer to it.

array_counter_a=1;
for a=0:1:30
array_counter_b=1;
    for b=0:1:30
        solution(array_counter_a,array_counter_b)= some_function(a,b)
        array_counter_b = array_counter_b+1;
    end
   array_counter_a=array_counter_a+1; 
end
a=0:1:30;
b=0:1:30;

So 'a' is a variable of size 30x1, 'b' is a variable of size 30x1, and the size of solution is the size of 30x30. Now i want to 3d plot of solution vs 'a' and 'b'. I always get an error saying dimensions mismatch, but i dont understand why.

Answer 1

[VBBV]

%if true
  mesh(0:30,0:30,solution)

Try the above. If you have used

%if true
mesh(a,b,solution);

It won't work. Since a and b are for loop counters. So at end of loop their values are just 30 and 30.

[VBBV]

a and b need to be used as vectors and plot them using 3D functions like mesh, surf etc

[RAN]

@VBBV I just edited the code, i used 'a' and 'b' like you mentioned. However I was trying to use plot3 instead of mesh

[VBBV]

Ok. Can you show the o/p?

[RAN]

It works with mesh, instead of plot3. However it works, and I got what i needed. Thank you.