Help with Maple 8 (1 Viewer)

[Fruitcake05]

Hey guys, just got Maple 8, just need some help. Im trying to graph of the trigonometric rations (sinx, cosx etc.) and dont understand.

I got this bit ok

plot( sin(x), x=-4..4, y=-4..4, discont=true, title="y = sin(x)" );

I want to make the x axis go to 360degrees, but no idea how to. Any help is greatly appreciated.

 

[wogboy]

If you want the x-axis to go from 0 to 360 degrees, change the x=-4..4 into x=0..2*Pi. Also the restriction on y you've used (y=-4..4) is useless, since this covers the range of the function y = sinx, so you might as well leave it out. Also there's no need for the discont=true in the command, since sin(x) is a continuous function. When plotting a discontinous function, then discont=true should be used. Your final command should look something like this:

plot( sin(x), x=-4..4, title="y = sin(x)" );

 

[Fruitcake05]

I can get the x axis into 1, 2, 3, and 4, but i want to get it to 90º, 180º, 270º and 360º.

 

[Templar]

I can get the x axis into 1, 2, 3, and 4, but i want to get it to 90º, 180º, 270º and 360º.

plot( sin(Pi*x/180), x=0..360, title="y = sin(x)" );

Should get used to dealing with radians though.

 

[Fruitcake05]

Thanks both of you guys, really saved me a lotta stress there.

And btw what is a radian? I dont think we have learnt that yet?

 

[nick1048]

radians are representations of degrees. The conversion statement is pi = 180. where pi represents radians.

i.e. pi = 180
pi/2 = 90
pi/3 = 60
pi/6 = 30
pi/12 = 15

You need to use these for all calculus studies, your posting in the 4u section and you don't noe radians??? Are you new?

 

[Fruitcake05]

Well yeah im sorta new, but i dont know radians (well i do now) because Im in yr 11. I only posted in the Ext 2 forum because Id get more replys here.