# Grapher Help (well math help)

Discussion in 'Mac Apps and Mac App Store' started by 36183, May 26, 2005.

1. ### 36183 Guest

Joined:
Jun 24, 2004
#1
i need to draw a tan line graph for my math homework, and actully drawing one it rather hard (well not really hard, just annoying with all the drawing of the curves)

i am trying to draw one with the grapher app but i dont know what to type in to get a tan line graph thing.

2. ### dollystereo macrumors 6502a

Joined:
Oct 6, 2004
Location:
France
#2
Whats the funtion yoo are calculating tan?, i think grapher has a n option to draw a tan curve, but if it doesnt have, just post your function, and i give you the rect eq. You always can do that by hand, just derivate.

I am gonna see if Grapher has the tan option.

CY

Joined:
Jun 24, 2004

Joined:
Jun 22, 2001
5. ### 36183 thread starter Guest

Joined:
Jun 24, 2004
#5
yes it did indeed.

now just delete this thread unless my math teacher finds it

6. ### 4409723 Suspended

Joined:
Jun 22, 2001
#6
I don't know what you plan to use these graphs for but it may save you some confusion if you take note that, as Grapher does calculus too, it defaults to using radians instead of degrees.

This can be changed in the advanced section of preferences.

(Sorry if I sound condescending; I don't know what level of math you are taking.)

7. ### 36183 thread starter Guest

Joined:
Jun 24, 2004
#7
i am doing high level GCSE. my math teacher just told us to draw some sin,cos and tan graphs and i cant be bothered to actually draw them.

we should start doing some more serious work soon.

8. ### cr2sh macrumors 68030

Joined:
May 28, 2002
Location:
downtown
#8
Hmm. Might I suggest actually learning why the curves look like they do so that next time you won't have to rely on macrumors and a computer to graph a trigonometric function?

9. ### 4409723 Suspended

Joined:
Jun 22, 2001
#9
This will come in handy later. They are all infinitely cyclical. Sin and Cos are very closely related to as you will notice that one is just a translation along the x-axis of the other.

Maybe you could try graphing sin(x)/cos(x) and see what you get...

10. ### 36183 thread starter Guest

Joined:
Jun 24, 2004
#10
i know why the curves look the way they look. i do listen in math class. i just cant be bother to draw them.

11. ### cr2sh macrumors 68030

Joined:
May 28, 2002
Location:
downtown
#11
Well I'm sure your "this is below me" attitude will take you far in your high level math course. Good luck.

12. ### 36183 thread starter Guest

Joined:
Jun 24, 2004
#12
i just dont want to draw the curves, it is so dam hard to get right.

and thanks for wishing me well

13. ### cr2sh macrumors 68030

Joined:
May 28, 2002
Location:
downtown
#13
Heh. You are correct, Curves are tough to get Right.... Angles however, are another matter.

Alright, I'm done.

14. ### James Philp macrumors 65816

Joined:
Mar 5, 2005
Location:
Oxford/London
#14
The sin, cos and tan graphs are actually very easy to sketch.
TAN: Draw vertical asymptotes at every 180º on the x-axis (starting at ±90º), and then start from 0,0 point, draw a flat bit and then simply asymptote them up to infinity (to +90º) and -infinity (on negative side). Due to the nature of the TAN graph, you could never "draw" it unless you had an infinitely big piece of paper! Just sketch man, that's what their after!

Just don't ask what root loci and frequency response curves can look like!