Conditional sequence generator for sinus

Question

Sferle Alin-Tudor 2021-9-21

回答： Srijith Kasaragod 2021-9-24

Hi, I'm trying to generate a function for a sequence like:

x(n)={ sin(0.2*n),n>10 n is between 0 and 20

0,n<=10

I tried to solve the problem but only the ramp example came to my mind at this moment like x=sin(0.2*(n>10)) which is an complete incorrect solution.

Answer 1

Srijith Kasaragod 2021-9-24

Hi,

One way to generate the sequence is to use relational operators to assign values to variable 'x'. Following lines of code shows the same.

n=0:20;
x(n>10)= sin(0.2*n(n>10));
x(n<=10)= 0;

Pleasre refer this documentation to read more on how to filter elements of an array by applying conditions to the array.