Use one function in another

I have two functions, how can i use one in another ? I need to use my matrix A from first function in second one

function A = createMatrix(n, a)

n = 7

a = [3 4 1 2 5 2 1]

A = zeros(n);

for i = 1:n

for j = 1:n

A(i,j) = a(mod(j-i,n)+1);

end

end

end

There second

function period = findPeriod(A)

n = size(A, 1);

[~, idx] = max(A, [], 2);

idx = idx - 1;

g = n;

for k = 1:length(idx)-1

i = idx(k);

j = idx(k+1);

d = abs(i-j);

g = gcd(g, d / gcd(g, d));

end

period = g;

end

[imran saeed]

call second function from inside of first one.

Answer 1

[Torsten]

n = 7;
a = [3 4 1 2 5 2 1];
A = createMatrix(n, a)

A = 7×7

3 4 1 2 5 2 1 1 3 4 1 2 5 2 2 1 3 4 1 2 5 5 2 1 3 4 1 2 2 5 2 1 3 4 1 1 2 5 2 1 3 4 4 1 2 5 2 1 3

period = findPeriod(A)

period = 1

function A = createMatrix(n, a)
  A = zeros(n);
  for i = 1:n
    for j = 1:n
        A(i,j) = a(mod(j-i,n)+1);
    end
  end
end

function period = findPeriod(A)
  n = size(A, 1);
  [~, idx] = max(A, [], 2);
  idx = idx - 1;

  g = n;
  for k = 1:length(idx)-1
    i = idx(k);
    j = idx(k+1);
    d = abs(i-j);
    g = gcd(g, d / gcd(g, d));
  end

  period = g;
end

[Anastasiia Hanchevska]

If i will write everything like you said Matlab saying that function is unrecognized

[Dyuman Joshi]

Are you sure you did exactly the same as what Torsten did in their answer?

What is the full error message? Copy-paste all of the red text.

[Anastasiia Hanchevska]

Yeah, i found the problem. Torsten helped so much. Thank all you guys