implementation of a matrix
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Hello! I want to implement the following matrix:
where 
is a given vector of random indices
is a given vector of random indicesCan someone help me to implement that?
3 个评论
madhan ravi
2020-7-19
Did you do anything for your homework?
Franziska Bömann
2020-7-19
madhan ravi
2020-7-19
Ok , can you upload what you have tried?
采纳的回答
Thiago Henrique Gomes Lobato
2020-7-19
This should do:
rng(42)
n = 3;
x = rand(n,1);
A = ones(n,n+1);
Differences = x-x';
for idx=2:n+1
A(:,idx) = A(:,idx-1).*Differences(:,idx-1);
end
x
A
x =
0.3745
0.9507
0.7320
A =
1.0000 0 0 0
1.0000 0.5762 0 0
1.0000 0.3575 -0.0782 0
更多回答（1 个）
Bruno Luong
2020-7-19
编辑：Bruno Luong
2020-7-19
n = 3;
x = rand(n+1,1);
A = cumprod([ones(size(x)), (x-x(1:end-1).')], 2)
1 个评论
madhan ravi
2020-7-19
编辑：madhan ravi
2020-7-19
But why though? It’s pretty obvious it’s a homework question? It’s not a homework solving contest XD.
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