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  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#77 Re: Help Me ! » Seperation of variable question. » 2008-04-15 14:08:38

WOW!!! I wrote the wrong thing for the answer in my initial post.

e^c is supposed to be multiplied by the whole square root.

I'm soo sorry for the confusion. That's what I don't get, why it's multiplied and not added. And yes, lol, I know what C represents in the integral.

#78 Re: Help Me ! » Seperation of variable question. » 2008-04-15 12:32:17

I still don't understand how you would find the C (whether it's e^C or C), and I know that it's still a constant but I want to know HOW it's done for my own knowledge.  It's really stumping me.

#80 Re: Formulas » Stat and Data Analysis » 2008-04-15 08:18:54

Oops, You're right. Still can someone explain why latex fails with a sigma in a fraction?

#81 Re: Help Me ! » Seperation of variable question. » 2008-04-15 08:17:22

Yeah, I edited, sorry.
But what I don't understand is how you get

#82 Re: Help Me ! » Seperation of variable question. » 2008-04-15 08:14:08

I get that up until where the C comes from. How does it fit in to place?

Because isn't

technically supposed to be written as
? Since the constant is added directly after the integration step.

#83 Re: Maths Is Fun - Suggestions and Comments » Wink Murder » 2008-04-15 08:00:31

Oh Snap! Simron has a good point. Guess I'm out too.

#84 Help Me ! » Seperation of variable question. » 2008-04-15 07:50:35

SvenBee
Replies: 18

Find the general Solution:

Now, I worked it out and here are the steps:

Now there's a missing step in there when you get rid of the natural log of y by raising e to each side (if you get what I mean) and that's what I don't understand.

Could someone please help?

#85 Re: Dark Discussions at Cafe Infinity » Anyone listen to Flogging Molly? » 2008-04-15 07:42:42

They're an Irish Punk band! :DD

If you're open to new things check them out.

#86 Re: Dark Discussions at Cafe Infinity » Anyone listen to Flogging Molly? » 2008-04-14 23:05:58

I DO listen to classical Music, in fact I listen to EVERYTHING with the exceptions of some country and some opera (this is mostly English opera, I only REALLY like Italian Opera).

#88 Re: Jokes » Writing letters to son » 2008-04-14 18:02:28

Lol, think about that statement... Had enough time?... Now, why would I explain YOUR joke to YOU? lol It was just a general explanation to anyone who does not or has not understood it. =P

#89 Re: Help Me ! » using identity:- » 2008-04-14 18:00:05

Are you sure that's right mathsyperson?  Because if it is then b= -9y and -4y. Maybe I'm just looking to shallow though... Hmm.

#90 Formulas » Stat and Data Analysis » 2008-04-14 15:46:13

SvenBee
Replies: 2


P.S. For some reason when you have a sum

in the numerator or denominator of a fraction LaTeX doesn't register the subscripts or superscripts.  Could someone tell me what I did wrong or why it doesn't work?

#91 Dark Discussions at Cafe Infinity » Anyone listen to Flogging Molly? » 2008-04-14 15:02:54

SvenBee
Replies: 3

I really like the band, someone throw your opinions this way.

#92 Re: Help Me ! » How do you absorb this fact? (3^2)(4^2)=12^2 » 2008-04-14 15:01:38

No prob, I had mercury for about a day then realized I could custom all my pages with mozilla. Now all my webpages are dark blue, regardless of their original. >.<, hope the identity helped.

#93 Re: Jokes » A message about lying » 2008-04-14 14:59:39

HE SAID: "Minted Joke" If I'm not mistaken Correct me if I'm wrong. =P

#95 Re: Jokes » Sadly this is not a joke, but you will laugh. » 2008-04-14 12:29:34

If you knew the kid you wouldn't even ask that. She was being 100% serious when she said that.

#96 Jokes » Sadly this is not a joke, but you will laugh. » 2008-04-14 07:38:07

SvenBee
Replies: 6

Before I start let me say that the person having this conversation with the teacher is a JUNIOR IN HIGHSCHOOL:

Mr. Miani(Teacher by the way): "Do you even know how to multiply? How could you miss that? This is third grade math!"

Anonymous student: "Of course I know how to multiply, I'm in Advanced Math (precalc). I just forgot the formulas."

Mr. Miani(getting really aggravated): "Tell me then *student* what is 7 times 9?"

Student: "63, duh!"

Mr. Miani: "Well then, what's 9 times 7?"

Student: "36, this isn't funny anymore."


I'm not kidding about this, the class literally fell into a stupor after this was said. It was so funny I almost forgot about my looming AP Calc exam. AHHHHHHHH!!!!! x_x (<--This is because there isn't a good "dead" smiley)

#97 Re: Dark Discussions at Cafe Infinity » Dont you feel like you have accomplished nothing in your life? » 2008-04-14 07:30:04

Way to take it out of context and make it about yourself Jane (even if you are beautiful and an amazingly talented mathematician; I'm not a drag up). And of course we appreciate what you do.



P.S. Please not the irony of me bumping this by calling to attention Jane taking this out of context and thus taking it out of context myself.


P.P.S. I can name some important things that you've accomplished Luis. The most important of which is: helping all of those people on this forum that don't understand what's going on and have questions. Thank you. smile

#98 Re: Jokes » Writing letters to son » 2008-04-14 07:23:45

If you don't get the original joke: the parents are basically saying that it has been so since the last letter that they consider themselves (at the time of the letter) to be "young" and "impressionable". XD

#99 Re: Help Me ! » How do you absorb this fact? (3^2)(4^2)=12^2 » 2008-04-14 07:14:59

It's just one of those exponential properties that you need to remember: any two (or more) numbers with the same exponent being multiplied together results in the product of the numbers raised to the exponent.

similarly

#100 Re: Dark Discussions at Cafe Infinity » Dont you feel like you have accomplished nothing in your life? » 2008-04-12 17:20:05

I know what you mean Luis, I'm a senior in high school and when we go to Mu Alpha Theta (mat club) tournaments and things like that there are kids in 8th and 9th grade that are taking the same calc test that I am, and scoring better.  I get the same feeling that you do, but then I think to myself that not every person is the same and that everyone has their strengths and weaknesses.  Also I think about how unimportant it really is in the scheme of things b/c there really isn't anything more important than being content with yourself, whatever your level may be. I'm not saying it's not good to improve, but it's always a good idea to focus more on your achievements than your shortcomings. 

Hope this helped. smile

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