# Should Behavior of sub2ind() be Different for Symbolic and Numeric Inputs?

2 ビュー (過去 30 日間)
Paul 2021 年 6 月 22 日
コメント済み: Paul 2022 年 5 月 25 日
maxrows = 1; r = 1; a = 1; c = 1; ii = false;
D = zeros(3,3,maxrows) % D is a double
D = 3×3
0 0 0 0 0 0 0 0 0
D(sub2ind([3,3,maxrows],a(ii),a(ii),r(ii))) = c(ii)
D = 3×3
0 0 0 0 0 0 0 0 0
D = zeros(3,3,maxrows,'sym') % now D is a sym
D = D(sub2ind([3,3,maxrows],a(ii),a(ii),r(ii))) = c(ii)
D = Why does sub2ind() change the dimension of D in the latter case?
##### 1 件のコメント表示非表示 なし
Paul 2022 年 5 月 25 日
Fixed in 2022a
maxrows = 1; r = 1; a = 1; c = 1; ii = false;
D = zeros(3,3,maxrows) % D is a double
D = 3×3
0 0 0 0 0 0 0 0 0
D(sub2ind([3,3,maxrows],a(ii),a(ii),r(ii))) = c(ii)
D = 3×3
0 0 0 0 0 0 0 0 0
D = zeros(3,3,maxrows,'sym') % now D is a sym
D = D(sub2ind([3,3,maxrows],a(ii),a(ii),r(ii))) = c(ii)
D = サインインしてコメントする。

### 採用された回答

Divija Aleti 2021 年 7 月 6 日
Hi Paul,
The development team is working on resolving this issue. A task has been created for our development team about the bug report.
Thank you for your understanding and you will definitely be notified once the this issue is resolved.
Regards,
Divija

サインインしてコメントする。

R2021a

### Community Treasure Hunt

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

Start Hunting!