How can I make a symbolic function with vector input?

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I want to make a symbolic function with vector input.
I tried a code
a=sym('a',[1 3]);
k=[1 1 1];
But it didn't work. I could find that f(1,1,1) works, but I want to make f with f([1 1 1]). How could I do it?

Accepted Answer

Jyotsna Talluri
Jyotsna Talluri on 24 Apr 2020
a=sym('a',[1 3]);
f= @(a)(a(1)^2+a(2)+a(3)*a(1));
k=[1 1 1];

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