Dot indexing is not supported for variables of this type.

2 次查看（过去 30 天）
Ryan
Ryan 2022-9-27
回答： Image Analyst 2022-9-27
Ran in:
When I am running my code, I get a response that a built-in with syms is not running correctly.
syms F D l t w
% Stress
n_stress = F./(t.*w);
u_nstress = sqrt((diff(n_stress,F).*u_f).^2+(diff(n_stress,t).u_c).^2+(diff(n_stress,w).*u_c).^2)
Unrecognized function or variable 'u_f'.
Dot indexing is not supported for variables of this type.
Error in sym/subsref (line 909)
R_tilde = builtin('subsref',L_tilde,Idx);
Error in Carbon90 (line 29)

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2022-9-27
diff(n_stress,t) is a vector. It does not have a u_c field. Perhaps you meant
diff(n_stress,t) .* u_c

类别

在 Help Center 和 File Exchange 中查找有关 Symbolic Math Toolbox 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by