MATLAB: How to make the dimensions agree for this function

MATLABmatrix

f = @(x) x – exp(cos(transpose[1:4])*sum(x)); And x=[2.5;2;1.4;.9] is a column vector. when I subtract it says error Matrix dimensions must agree.

f = @(x) x.' - exp(cos([1:4]*sum(x)))

I am guessing you want to use the element-wise multiply operator, which has the dot:

f = exp(x) .* cos(x);

 reshape(x,9,1)

 x(:) % this creates a column vector out of a matrix