CS计算机代考程序代写 function L = lagrange_L(i,nodes,x)

function L = lagrange_L(i,nodes,x)

L = ones(length(x),1);

for k = 1:length(x)
for j = 1:length(nodes)
if j~=i
L(k) = L(k)*(x(k)-nodes(j))/(nodes(i)-nodes(j));
end
end
end

end