Problem of Symbolic function evaluation
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syms u [2 1]
f(u) = u'*u;
f(1,2) % Correct syntax the ans is 5
f([1;2]) %Incorrect syntax Symbolic function expected 2 input arguments but received 1.
Why can the input of a function only be two variables, not a vector? What if there are many variables, such as 100 variables? It is too troublesome to input 100 values one by one during evaluation.
采纳的回答
u = sym('u',[2 1]);
f = u.'*u
result = subs(f,u,[1;2])
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