repeated condition in a for loop

N = 50000000;

f = 1E6;

DT = 1E-4;

for L = 1:N

T = DT*double(L); % period

a = 0.1;

b =40*T;

i want to add this condition here:

if 0<t<a*b

A = sin(2*pi*f*t)

elseif a*b<t<b

A = 0;

end

end

thsi condition should be repeated in the loop for each 40*T, knowing that we have 5000 periods

Answer 1

[Rik]

Conditions like 0<t<a*b should be split in Matlab to 0<t && t<a*b.

Note that your code will be overwriting the result and that it relies on undefined variables.

If you want specific suggestions, you will have to explain what you want.

[m m]

i want to make a condition on this expression A = sin(2*pi*f*t) (A is an excitation )

this expression should be taken into accound only if the condition 0<t<a*b is verfied, if not A sould be zero.

but i have for loop of time (L iteration for time),

b = 40 T with T is the period defined as T = DT* double(L) , with DT is the time step

my objective is to make the excitation A which is sinisoidal excitaion to a pulsed exciation ( by this condition )

i hope this can help

[Rik]

Where exactly do you want to define t?

If you want to assign 0 to all other values, you can use the condition in the calculation itself:

A = sin(2*pi*f*t)*double(0<t && t<a*b);

This works for a scalar t.

What do you want to do next? How do you want to use the value of A next?