gradient issue for matlab

2 次查看（过去 30 天）
ABDULLA RAHIL
ABDULLA RAHIL 2019-4-24
评论： ABDULLA RAHIL 2019-4-24
Hi
I am trying to use the gradient function to have dq/dv and dv /dq . The martix has one direction is q and one is v but without titles for each one. My matrix size is 47 rows and 2 column.

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2019-4-24
编辑：KSSV 2019-4-24
Let A be your 47X2 matrix.
q = A(:,1) ;
v = A(:,2) ;
dq_dv = diff(q)./diff(v) ; % dq/dv
dv_dq = diff(v)./diff(q) ; % dv/dq
  1 个评论
ABDULLA RAHIL
ABDULLA RAHIL 2019-4-24
Hi KSSV,
Thanks for your answer, is it possible by using the equations belwo
FX = gradient(F)
[FX,FY] = gradient(F)
[FX,FY,FZ,...,FN] = gradient(F)

请先登录，再进行评论。

更多回答（1 个）

Image Analyst
Image Analyst 2019-4-24
If M is your matrix, have you tried imgradientxy()?
[gx, gy] = imgradientxy(M); % Requires Image Processing Toolbox.

类别

在 Help Center 和 File Exchange 中查找有关 Object Analysis 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by