How to I create a function handle through recursion?
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I want to output a polynomial using values from a vector. Kind of like how you'd add recursively for a running sum, I'm trying to add terms recursively.
If my function is f(t) and A is a matrix of values, I'd want f(t) to be:
f(t) = A(1,1) + A(2,1) * t^1 + A(3,1) * t^2 + ... + A(n,1) * t^(n-1)
Edit: I forgot to add that I'm calculating the A matrix in the function, so the length isn't known, hence why I need to create the function recursively.
采纳的回答
I don't see any reason why you need any recursion, basic vectorized code works just fine:
V = 0:size(A,1)-1;
F = sum(A(:,1).*t.^V(:))
3 个评论
Nathan Phelps
2020-10-26
Stephen23
2020-10-26
>> A = randi(9,5,3)
A =
7 8 4
1 7 4
3 3 7
1 9 8
1 1 2
>> V = 0:size(A,1)-1;
>> fun = @(t) sum(A(:,1).*t.^V(:));
>> fun(2)
ans =
45
>> fun(5)
ans =
837
Nathan Phelps
2020-10-26
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