I searched about draw graph of $[\sin x]$ but I don't know how to draw it like this: image
I have matlab and gegebra but I don't know how to do it (about points like $\pi / 2$. Is it possible to help me?
I'm sorry for ask this question in this place but I didn't found any better place.
Update:
It's gegebra screenshot:
gegebra
Thanks.
there are two ways of measuring angles: degrees and radians
in degrees, the wave repeats every 360 degrees, but in radians it repeats every 2 pi, this piece of software is using radians as is fairly standard for higher levels of mathematics (note, wolfram alpha also uses radians)