清空筛选条件
清空筛选条件

Why doesn't Matlab simplify units to Ohms..

3 次查看（过去 30 天）
Ashley Imhoff
Ashley Imhoff 2019-2-13
回答： Aiswarya 2024-2-28
u = symunit;
u0 = (4*pi()*1E-7)*(u.H/u.m);
e0 = 8.854187817*(1e-12)*u.F/u.m;
er = 1;
ur = 1.0;
Z = sqrt(u0/e0);
Zo = unitConvert(Z,'SI','Derived');
Zo = simplify(expand(Z));
Zo = vpa(Zo,5) %The Units should be Ohms

请先登录，再回答此问题。

回答（1 个）

Aiswarya
Aiswarya 2024-2-28
Hi,
I understand that you are trying to simplify and convert your variable "Zo" to Ohms. The issue is that the function "unitConvert" does not simplify square roots, but only takes care of the units inside of them. You can resolve the issue by referring to the following modified code:
Z = sqrt(u0/e0);
% Convert to SI units and then simplify
Zo = unitConvert(Z, 'SI');
Zo = simplify(expand(Zo));
Zo = unitConvert(Zo, 'SI', 'Derived'); % Using 'Derived' resolves the units to 'Ohm'
Zo = vpa(Zo,5);
You can observe that the unit of "Zo" is "Ohms".

类别

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

标签

产品


版本

R2018a

Community Treasure Hunt

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

Start Hunting!

Translated by