@acer 

 Why do for loops make errors?

ssssssssss.mw

@acer 

OK

I appreciate your consideration guidance.

@acer 

Much obliged.

@acer

I very much appreciate your help. 

How can it be trigonometric?

Download 002.mw

@acer 

I appreciate your taking the time.

But what should I do if I want to use the complex value i?

Download eval_ex_01.mw

@Oliver K 

I appreciate your taking the time.

@Thomas Richard 

 Thank you very much.

Is there a program to go from 8 to 10?

@C_R 

Why is the following code not executed in MATLAB?
(because it is complex)

Is there a solution???

% plot grid
t = linspace(-5, 5, 35);
n = linspace(-5, 5, 35);
 
% compute plot grid values
[T, N] = meshgrid(t, n);
 
% compute Z values
Z = (6.*exp(T)+6-sqrt(-18.*exp(T)-6))./(3+3.*exp(T));
 
% plot
surf(T, N, Z);
colorbar

@C_R 

Thanks 

@tomleslie 

 I appreciate your consideration.

@C_R 

 I appreciate your taking the time.

 Just how can I adjust the colors to be brighter? 

@acer 

I want to write a code for the general state of the attached file with Maple, but unfortunately I could not, can anyone help me in this field?

GER.pdf

@C_R 

 okey

How is the MATLAB code? Of course, my MATLAB version is 2014

@acer 

Okey

I had forgotten this question.