(no subject)

[tammaiya]

Have headache, tired, and someone REALLY needs to explain to me the whole sine curve/anticlockwise/circle/pi thing. Because I haven't done maths in almost 2 years, and I am staring at these graphs I am supposed to be drawing, and I am SO LOST. I get the amplitude. I get the frequency. I DON'T GET THE PHASE.

And I'm hungry.

*cries*

ETA: Okay, okay, I've stared at it for a while and it's starting to ring bells. I remember the circle thing. But is it 0 1/3pi 1/2pi 2/3pi pi? Or is it 0 1/2pi 2/3pi pi 0? And if the former, how is pi any different to 0? And if the latter... how does that make any sense?

HELP PLZ.

Comments

[tammaiya.livejournal.com]

yes, it did! So does that mean 2/3 pi is (-1,0) and pi is (0,-1)?

[tammaiya.livejournal.com]

Aaaaaaaah, that DOES help. Thanks! ♥ (I looked up pi on wiki, but that didn't work so well. ^^;)

[tammaiya.livejournal.com]

Aaaaaah. I remember I time when I used to be really good at all this stuff, but I haven't done ANY maths, at ALL, for 2 years. Anything more complex than basic functions is lost to me. XD