How to multiply all elements of matrix
6 ビュー (過去 30 日間)
古いコメントを表示
Suppose I have a matrix
0 0.3333 0 0 0.6667
0 0 1.0000 0 0
0 0 0 0 1.0000
1.0000 0 0 0 0
0.4000 0 0 0.2000 0.4000
I want to multiply nonzero elements of above matrix i.e. 0.3333*0.6667*1*1*1*0.4*0.2*0.4=0.00711. How to do this.
0 件のコメント
回答 (2 件)
Azzi Abdelmalek
2016 年 5 月 6 日
prod(nonzeros(A(:)))
1 件のコメント
Guillaume
2016 年 5 月 6 日
You don't even need the (:) since nonzeros will return a vector anyway:
prod(nonzeros(A))
参考
カテゴリ
Help Center および File Exchange で Resizing and Reshaping Matrices 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!