Author Topic: Because it start to P*** me off (Read 2885 times)

Anonymous · « **Reply #15 on:** January 06, 2005, 09:07:17 pm »

So we get the same answer Enoc.

I'm happy to know I wasn't way off.

I'm surprised I still knew how to do that after all that time.

Eroz · « **Reply #16 on:** January 06, 2005, 10:12:42 pm »

I get that... but when I graph the original function on my calulator (Casio CFX-9850GC (TI 89/82 Eqv)) I get a mirriored part of the graph ( It looks like a absolute function.)

I would show you but I can't find where you made that graph.

CPM - Analysis

?

Anonymous · « **Reply #17 on:** January 07, 2005, 10:12:54 pm »

If it's in the original function, then it's probably in your placing of parantheses. Those Casio calculators can be tricky. If you don't place them right, it might think you're telling it to graph a quadratic (e.g. x^2), and then to take the third root. On paper, that works, but the calculator needs to graph x to the power of two-thirds (e.g. x^(2/3)). The graph should look like an arm, not a parabola. I don't use those Casios at school so I don't know the exact key layout, or how to work them, so I can't help you there. At school, I use a Texas Instruments TI-83 (they're similar, but not identical) and at home a CPU graphing program.

Eroz · « **Reply #18 on:** January 08, 2005, 12:20:55 am »

No it not quiet the place of my parantheses or not anything I can perse.... if you put it into you TI you should see what I am see (It does the same thing on the 89's as well.) It has something to do with the 2/3 power not being read by the calculator right. Is it a free graphing program because using Excel to graph is annoying.

Anonymous · « **Reply #19 on:** January 08, 2005, 01:36:03 am »

Yeah, it's called GraphCalc. I got it off of Downloads.com. Well, the parantheses is the only thing that ever makes my graphs come out wrong on the TI-83 or 89.