How to change length of an input signal? signal X in below example?

Hello everyone

Below is code that i want to run for different duration. What actually effects the lenght in below code. I thought N changes number of code bit it does not changes with any value of N. If i have to run it for long what should i change?

Code is pasted in above line. Thats how time is defined in my long code. Last two lines dummy plot just to show signal.

[Akira Agata]

What does the following two lines in your code mean?

These lines must return error.

wu 1.2868e + = 04;

and

time = time T * / N;

[Syed Adeel]

I dont know why some symbols change when i save my posts. Its wu = 1.2868e + 04; and time = T * time / N;

wu 1.2868e + = 04;

T = 10 / wu;

N = 200;

time = 1: 1: N;

time = time T * / N;

% above is how time is defined in my long code, i cant change

% below is just a random signal defined to show

x = sin (2 * 8000 * time);

plot (time, x);

Answer 1

[David Hill]

wu=1.2868e4;
T=20/wu;%change T
N=200;
t=1:N;
t=T*t/N;
x=sin(16000*t);
plot(t,x);

[Syed Adeel]

Thankyou for your reply.

I tried that before and it works. Why doesnt N works here? Can you comment

[David Hill]

Because you divide by N. Combining your three equations:

t=20/wu*(1:N)/N;