How can I use summation and product, simultaneously???
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KSSV
2021년 3월 17일
Something like this:
m = 2 ; % i
n = 3 ; % j
C = rand(m,1) ;
k = rand(m,n) ;
M = rand(m,n) ;
iwant = zeros(m,1) ;
for i = 1:m
p = 1 ;
for j = 1:n
p = p*(1-k(i,j))^M(i,j) ;
end
iwant(i) = C(i)*p ;
end
Please cross check the code, I gave it quickly.
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Steven Lord
2021년 3월 17일
symsum and symprod are not the right tools for this job. You cannot use them to evaluate expressions where the symbolic variables are used as indices into an array.
syms k
symsum(2.^k, k, 1, 10) % works
x = 1:10;
symsum(x(k), k, 1, 10) % does not work
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