Domain error. To compute complex results from real x, use 'log(complex(x))'

3 次查看（过去 30 天）
Atharva Bhomle
Atharva Bhomle 2023-7-5
回答： Sai Pallav 2023-7-5
I am calculating v_model as
v_model=e0 + i*r - (k0/soc) - (k1*soc) + k2*(log(soc)) + k3*(log(1-soc))
Other all parameters I have given to the matlab function block which calculates the above equation.
At t=0 in simulink, i have set soc=0.995
But when it calculates log(1-soc) it gives domain error. When I connected physical blocks of substract and log it said input to log block is zero.
I don't know why simulink is taking 1-0.995 as zero.

请先登录，再回答此问题。

采纳的回答

Sai Pallav
Sai Pallav 2023-7-5
Hi Atharva,
Could you please provide the MATLAB version and more details of the process you are running. The log function in 2023a version is working fine. For example,
>> soc = 0.995;
>> log(1-soc)
ans =
-5.2983
So, I don't think the problem is in the log function.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Creating Custom Components and Libraries 的更多信息

标签

产品


版本

R2022b

Community Treasure Hunt

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

Start Hunting!

Translated by