Error "Argument to dynamic structure reference must evaluate to a valid field name." What did I wrong?

Hi,

I became the error "Argument to dynamic structure reference must evaluate to a valid field name."

I tried a lot to set right the dots but I dont know why it isnt working. Can someone help me?

here's the code:

T_1=linspace(0,160,160);
T=T_1+273.15; 

A= -181.587;
B= 8632.13;
C= 24.7981;
D= 0; 

H12= 1./(exp(A+(B./T)+(C*log.(T))+(D*T))); 

Answer 1

[Fangjun Jiang]

T_1=linspace(0,160,160);
T=T_1+273.15; 

A= -181.587;
B= 8632.13;
C= 24.7981;
D= 0; 

H12= 1./(exp(A+(B./T)+(C*log(T))+(D*T)))

H12 = 1×160

1.0e+05 * 0.5242 0.5373 0.5505 0.5638 0.5771 0.5904 0.6037 0.6170 0.6303 0.6436 0.6569 0.6701 0.6833 0.6965 0.7096 0.7226 0.7356 0.7484 0.7612 0.7739 0.7864 0.7989 0.8112 0.8234 0.8355 0.8474 0.8591 0.8707 0.8821 0.8934

[Coginator]

It also doesnt works

"Error using /

Matrix dimensions must agree." is the answer from matlab

[Fangjun Jiang]

See. The above code runs in R2022a.

[Coginator]

yes the new matlab version works

thank you

Answer 2

[Steven Lord]

(C*log.(T))

You have an unnecessary . here.

[Coginator]

It also doesnt works

"Error using /

Matrix dimensions must agree." is the answer from matlab

[Image Analyst]

H12= 1./(exp(A+(B./T)+(C*log.(T))+(D*T)));
%                           ^ Look up above.  Get rid of this dot!
% Should be
H12= 1./(exp(A+(B./T)+(C*log(T))+(D*T)));

Also, the same as the answer below.