清空筛选条件
清空筛选条件

Divide elements of matrix by scalar

11 次查看（过去 30 天）
Sarah Gomez
Sarah Gomez 2022-3-3
评论： Sarah Gomez 2022-3-3
for i = 1:N
P(i) = P(i)/2;
end
I have this for loop that's supposed to divide each element of P by two, then I graph P but it's always double what it needs to be. N is 120 and P is a 1x120 array so it's not an indexing problem.
When I isolate my P array in another script and divide each element by 2 my graph looks how I want it to
Why won't my intial code divide by 2? Any help is greatly appreciated.

请先登录，再回答此问题。

回答（1 个）

the cyclist
the cyclist 2022-3-3
Are you doing this for loop inside a function? If so, the operation you are doing is only on the local copy of P. You need to output that new value of P from the function. Something like
function P = divideByTwo(P)
for i = 1:N
P(i) = P(i)/2;
end
end
  1 个评论
Sarah Gomez
Sarah Gomez 2022-3-3
Yea, I fixed my problem everything was inside a loop. Took my loop out and eveyrthing worked. Thank you though!

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 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