MATLAB: Vector. Change the way the program gives me the answer.

vector

This program gives me the answer like this : c =
-3
c =
4
But I want the answer like this: c =
-3 4
The program:
v = [1 2 -3 4];
n = 1;
l = length (v);
while (n < l)
a = v(n);
b = v(n+1);
n = n+1;
if (a < 0 && b > 0)||(a > 0 && b < 0)
c = [b]
end
end

Best Answer

v = [1 2 -3 4];
n = 1;
l = length (v);
while (n < l)
a = v(n);
b = v(n+1);
if (a < 0 && b > 0)||(a > 0 && b < 0)
     c(n) = b;
else
    c(n) = nan;
end
n = n+1;
end
c
c = 1×3
   NaN    -3     4
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