Variable q5 must be of size [1 2]. It is currently of size [1 1]. Check where the variable is assigned a value.
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syms x y
f(x,y)=x-x*y^2+sqrt(y);
u=[2,9];
q5=dot(u/norm(u),jacobian(f(x,y),[x,y]));
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Walter Roberson
el 14 de Mzo. de 2024
syms x y
f(x,y)=x-x*y^2+sqrt(y);
u = sym([2,9]);
part1 = u/norm(u)
part2 = jacobian(f(x,y),[x,y])
q5 = dot(part1, part2)
You have the dot product of a 1 x 2 and a 1 x 2. The result is going to be 1 x 1. You should not expect anything different for that set of equations.
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