My code is as follows
Mr_theo = (W_R + Up)./a2;
where W_R is a 1x1 double, Up is a 100x1 symbolic array, and a2 is a 100x1 symbolic array. All numbers are positve, however, they consistently are yeilding a negative number, which makes no sense to me at all. Is this a syntax error? the addition of W_R and Up is causing matmatical errors.