Math 2C Calculator Programs

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1

<p>I'm pretty good at math and am taking Honors Pre-Calc & am doing well in it. </p>

<p>I'm taking 2C in June and was wondering which calc programs specifically you use for the 2C.</p>

<p>What formulas & functions help the most?</p>

<p>Let's start a list:</p>

<p>[ul]
[<em>] Quadratic Formula
[</em>] Prime Factorization
[<em>] Law of Sines
[</em>] Law of Cosines</p>

<p>[<em>] Conics
[list]
[li]Circles[/li][</em>]Parabola
[<em>]Hyperbola
[</em>] Ellipses
[/ul]</p>

<p>[/list]
And a last question, do we have to know the double angle, half angle, etc. formulas for 2C? I mean I know how to apply them, etc., but was wondering whether I have to memorize them or put them in a calc program.</p>

2

<p>How about...</p>

<p>Conic Sections (Graphing Program)</p>

3

<p>I think double/half angle problems turn up occasionally, although I've never seen one on any practice test.</p>

4

<p>No need for proggies when you have an 89 :-) However.. for those lost souls that cling to their 83 (or don't have the bone to buy an 89), here are some additional formulas needed (keep in mind, i'm working out of the barrons. needless to say, it gives you a LOT more than you probably really need).</p>

<p>Series
- Sum of arithmetic series.
- Infinite sum of arithmetic series.
- Sum of geometric series.
- Infinite sum of geometric series.</p>

<p>Trig
- pythagorean trig identities</p>

<p>Random
- distance from a point to a line</p>

5

<p>omg, my friend let me borrow his 89. It's so useful!</p>

6

<p>Yeah, but it definitely takes some getting used to before you can really kick some butt with it.</p>

7

<p>whats the TI83 plus program for prime factorization?</p>

8

<p>There is probably more than one, just search google for it</p>

9

<p>An 89 can do it without any program :D</p>

10

<p>


</p>

<p>You're right...I took a PR practice test...with very little studying...got a 690. I have some work to do this week. Do you think I can bump it up to a 750+ or even an 800?</p>

<p>


</p>

<p>The problem is that I don't have an 89. I use a 83+, but I can probably find a 86 somewhere.</p>

11

<p>Not sure about that, but you could probably improve it quite a bit, if your work REALLY hard until the test. Especially this three-day weekend :)</p>

<p>Just get used to what the calculator can do (e.g. learn how to use SOLVE() and stuff). And go through as many practice tests as you can.</p>

<p>Good luck! :)</p>

12

<p>How do you do prime factorization on an 89?</p>

13

<p>


</p>

<p>Does that mean I can get a mid 700s? And it would be hard to get an 800 at this point?</p>

14

<p>pcspwn: factor(420) will give you 2^2 * 3 * 5 * 7
The factor thing is in the algebra menu (F2). You can also use it on polynomials:
factor(2x^4 + x^3 -4x^2 + x - 6) will give you (x+2)(2x-3)(x^2+1)</p>

<p>Scareya- I really don't know. I haven't taken the test yet myself (doing it next week too :eek: ). All you can do is try for it!</p>

15

<p>to the OP, i made a sick program with all of the trig identities, but it turns out the only trig probs on the IIC were simple sin, cos etc problems, so that might be a waste of time.</p>

<p>also, the quadratic formula is built into the TI-86, its called poly, i dunno about other calcs tho</p>

<p>there were also very few problems on conics, the most in depth the test got was circles, and if you are doing well in honors precalc you can probably figure it out without looking at a formula</p>

<p>hope i was helpful</p>

16

<p>^ Yes, that was helpful. Thanks :)</p>

17

<p>Listen to me guys. Listen, they had on the October test only a few conic parabolas that didnt deal with directrix/focus. THey of course had quad forumlas and whenever you used Law of C's or S's they usually told you. It's not that hard... the very first question was a "solve for x" problem where x was a first order equation @_@.</p>

18

<p>^ Now THAT'S my kind of math! XD</p>

<p>Also, would I be correct in assuming that the real test doesn't require knowledge of terms such as the latus rectum of conic sections? One of my Barron's tests asked that...</p>

19

<p>What the hell is a latus rectum?</p>

<p>Has anyone ever seen anything about directrix/focus on a test? I hadn't in the first 12 practice tests I've taken. And then I took a gander at Barron's model test 1 just now (lucky number 13, eh?), and they had this random stuff about the sum of the distances from a point on an ellipse to the foci.</p>

20

<p>"What the hell is a latus rectum?"</p>

<p>ahahaha that's what I said. It's different for each of the conic sections. Some weird, unimportant measurement.</p>