清空筛选条件
清空筛选条件

The sum of positive elements of a matrix

14 次查看（过去 30 天）
merowing3
merowing3 2018-9-18
评论： Christopher Wallace 2021-1-14
Let M be a matrix with dimensions mxn. Calculate the sum of all positive elements of matrix M without using loop.
My code:
sum(M>0) % sum of all positive elements in respective column, we get vector with sum for each column
sum(sum(M>0)) % sum of all sums from vector
Correct or not?

请先登录，再回答此问题。

采纳的回答

Christopher Wallace
sum(sum(M(M > 0)))

更多回答（1 个）

Mohamed Hossam
Mohamed Hossam 2021-1-14
is there a certain command that gets the sum of postive even numbers of an array?

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by