how to multiply one number with matrix

154 次查看（过去 30 天）
Tanmoyee Bhattacharya
评论： Image Analyst 2017-9-3
I have a matrix of size 3*4*4*9862
3=lat
4=lon
4=pressure
9862=number of days
I want to multiply 9.80665 with the values of this matrix if I multiply it like
k=matrix
k1=k*9.80665
or any other way

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2017-9-3
Let k be your 4 dimensional matrix. Use
k1=9.80665*k;
  2 个评论
Tanmoyee Bhattacharya
Tanmoyee Bhattacharya 2017-9-3
编辑：Tanmoyee Bhattacharya 2017-9-3
If this formula is applicable for 9862 days?Or only for one day?
Image Analyst
Image Analyst 2017-9-3
It multiples every single value (element) in the whole matrix by that number. If you want to multiply only some days, then you'll have to index those. Like to multiply only elements with day indexes between 1000 and 2000, do this
k1 = 9.80665 * matrix(:, :, :, 1000:2000);

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Resizing and Reshaping 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