What are Sine Waves and Their Applications in Different Fields?

[Jhenrique]

Sometime you already saw this kind of wave:

Exist some study about it, some application? Seem be interesting...

 

[adjacent]

How did you make that graph?
This is what I got:

And which software are you using?

 

[HallsofIvy]

How did you make that graph?
This is what I got:

And which software are you using?

If $\theta$ is measured in degrees that is impossible. $\theta$ lies between 45- 30= 15 and 45+ 30= 75 degrees.

 

[Jhenrique]

How did you make that graph?
This is what I got:

And which software are you using?

You are with so much zoom, decrease it...