Spyro the Dragon Forums / Math help!

Re: Math help!

dummy@example.com (Aceedwin) — Mon, 11 May 2009 16:16:07 +0000

Did you know it's possible to have a square of constant area, but infinite perimeter? Actually, it probably works on any polygon.

Re: Math help!

dummy@example.com (Stormy) — Mon, 11 May 2009 13:38:26 +0000

e is a constant (like pi) that equals about 2.7. So 1e+9 would be 11.7.

Or it might just be a variable like bmah said.

Re: Math help!

dummy@example.com (bmah) — Mon, 11 May 2009 05:45:13 +0000

I usually think of e as the natural log but in your case it might just be a variable.

Re: Math help!

dummy@example.com (Cesna) — Mon, 11 May 2009 03:53:50 +0000

What's 1e+9? And for that matter, what does the e even mean?

Re: Math help!

dummy@example.com (Swaffy) — Thu, 07 May 2009 03:04:12 +0000

Oh, I get it.

Diameter = 6m
Circumference = 100m

There are two circles. Apparently, they didn't give enough information.
Try messing around with using the formulas for the circumference of a
circle.

C = [pi] d

Re: Math help!

dummy@example.com (dragonmissioner) — Thu, 07 May 2009 00:43:26 +0000

OK, I am really good at geometry but I stink at word problems.

Here is what I have.

What is the outside diameter (to the nearest meter) of a circular track 6 meters wide if one forth of the inside circumference is 100 meters?

At first glance I thought it gave me diameter or radius. But then I saw 1/4 circumference is 100 meters. Does that mean that the actual circumference is 400 meters?

Re: Math help!

dummy@example.com (Swaffy) — Wed, 06 May 2009 21:01:57 +0000

True.

We are only going over Natural Logarithms and the other form of
Logarithms right now. It is easy if I take notes. Math has always been my
good subject. History is a bad one, and Spanish is pure failure for me.

When it comes to 30 60 90 triangles, needing to use cosine, tangent, and
sine, I get stuck. That stuff gets me unless I use a calculator.

Re: Math help!

dummy@example.com (pur) — Wed, 06 May 2009 19:36:59 +0000

Differentiation? Integration? Logarithms?

OH JOY. I was revising them earlier in a Maths Day trip to Keele University. Along with Indices, Trigonometry, Radians and Sequences.

Logarithms aren't so bad, unless you're like me and forget your calculator. I still can't believe I forgot my calculator. Fortunately, we didn't need it, as we were only going through worked examples.

Re: Math help!

dummy@example.com (Stormy) — Wed, 06 May 2009 18:12:11 +0000

bmah wrote:

if you delve further into calculus, integrals becomes your best friend and you use them all the time. Eventually, you can integrate anything. In AP/1st year college calculus, you're pretty restricted with knowing only a limited number of rules and therefore you can only integrate a few things.

Ah, that explains a lot. I thought we were just going to keep learning rules and formulas until we had one to apply to every type of problem. That would be a lot to remember, heh.

Re: Math help!

dummy@example.com (freak6) — Wed, 06 May 2009 08:07:29 +0000

wow and now everyone is talkign jibberish to me and tlaking abotu stuff i havnt even heard of yet....O__o

Re: Math help!

dummy@example.com (bmah) — Wed, 06 May 2009 06:03:03 +0000

if you delve further into calculus, integrals becomes your best friend and you use them all the time. Eventually, you can integrate anything. In AP/1st year college calculus, you're pretty restricted with knowing only a limited number of rules and therefore you can only integrate a few things.

Re: Math help!

dummy@example.com (Stormy) — Tue, 05 May 2009 17:00:07 +0000

Integrals aren't hard if you just memorize all the formulas, or at least have somewhere to look them up if you forget. Same with derivatives. The hardest part for me is understanding why exactly the rules work the way they do.

Re: Math help!

dummy@example.com (midget_roxx) — Tue, 05 May 2009 12:20:11 +0000

Anyone here do discrete maths . Might need help with mathematical proofs and logic statements .

Swaffy wrote:

Yeah, we are going over stuff like ...
2 log 5X^(1/2) = 4
[Something like that.]
[Example]
Solve the equation for X.
log 4X = -1
Steps
4X = 10^(-1)
4X = .1
X = 0.025
There you go ...

HA! Wait till you get to proper calculus . Believe me you'll find logs easy compared to integrals . They are the death of your mind

Re: Math help!

dummy@example.com (freak6) — Tue, 05 May 2009 09:21:47 +0000

oh we have stuff around that its really confusing and easy to get lost in i have a tudor for maths and it is my worst enemy i suck at it so bad....

Re: Math help!

dummy@example.com (TheAnvil) — Mon, 04 May 2009 23:45:21 +0000

Ouch! Even that makes my head hurt. I found as soon as I was out of college that all my math skills went on vacation and never came back. Rudimentary math I can do, but that stuff makes me shudder.