i'am writing a function the takes an n-by-m matrix as an input and returns the input matrix with the center element zeroed out. when i run it, it is giving the error:' not enough input arguments' in line two. can anybody assist me please.

function zero_middle(h)

[n,m]=size(h);

for ii=1:n;

for jj=1:m;

if mod(ii,2) && mod(jj,2);

h(end/2+1/2)=0;

end

end

end

end

Answer 1

[Walter Roberson]

You are trying to run your code by pressing the green Run button . You need to go down to the command line and invoke the code instead . Like

mm = magic(9);

zm = zero_middle(mm);

Answer 2

[Weisz Thomas]

function h= zero_middle(h)
h(end/2+1/2,end/2+1/2)=0;
end

[Walter Roberson]

Yup. And it so happens that under the circumstances imposed in the initial question, you could also use

h(end/2+1/2) = 0;