How can I use summation and product, simultaneously???
1 回表示 (過去 30 日間)
古いコメントを表示
Firstable Thank you for your kind.
I'm not good at MATLAB, so I always get information from this web-site.
I want to use summation(symsum) and product(symprod), simultaneously??
The equation is below.

plz help me...
0 件のコメント
採用された回答
KSSV
2021 年 3 月 17 日
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.
3 件のコメント
Steven Lord
2021 年 3 月 17 日
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
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Calculus についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!