Math Is Fun Forum

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

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#453 Re: Dark Discussions at Cafe Infinity » Future Population (End of the world in 3136?) » 2014-05-23 00:22:31

I hope that doesn't happen, but how can there be a negative population?

#456 Re: Dark Discussions at Cafe Infinity » Learning mathematics fast » 2014-05-22 08:53:02

I have a copy of that book too and I really enjoyed it.

#457 Re: Introductions » Let us welcome zetafunc. » 2014-05-22 08:37:44

He would have had over 6000 posts by now had he registered since he first arrived.

#458 Re: Dark Discussions at Cafe Infinity » Learning mathematics fast » 2014-05-22 07:48:59

Is it the one by Lang? It will likely be much better than the other books you read, mainly because it has more of a focus on proofs and understanding the material.

Most of the books you will be using henceforth will likely not have any answers because
a) the books are widely used (especially some of the books you will use later are used at several universities, so no solutions book to prevent cheating)
b) many of the problems are not numerical ones (e.g. many of them require proofs)

If there is a problem you can't solve, try to google that problem (you usually can find the solution online, but make sure it is correct and that you understand it) and if that doesn't work post it here.

#460 Re: Help Me ! » Circles #4 » 2014-05-22 01:56:08

http://www.meritnation.com/ask-answer/question/q-ab-is-the-diameter-of-a-circle-center-o-c-is-a-point-on/areas-related-to-circles/1587959

#461 Re: Introductions » Let us welcome zetafunc. » 2014-05-22 00:16:50

Welcome to the forum, Zetafunc!

#462 Re: Help Me ! » Floor and Ceiling » 2014-05-21 14:02:08

Yes. For example, his post would be:

Let f(x) = floor of


Suppose that
. What is the maximum possible value of
?
Suppose that
. What is the maximum possible value of
?

For the code, click the "Quote" button on the bottom right hand side of my post.

#463 Re: Help Me ! » Floor and Ceiling » 2014-05-21 13:56:24

Hi;

you have to put LaTeX between

 

tags.

#470 Re: Help Me ! » What is the gf of... » 2014-05-21 03:14:46

I think by using a search engine.

#471 Re: Help Me ! » Trig Proof Help » 2014-05-21 01:15:27

Agnishom wrote:

What is the fingers crossed smiley?

It is someone crossing their fingers.

#472 Re: Exercises » What do you think? » 2014-05-21 00:51:15

Oh, no, that is not me. I think I upvoted a couple of your answers a few months back though.

#474 Re: Exercises » What do you think? » 2014-05-21 00:30:44

Hi gAr;

I knew about the down voting but up voting never cost me any reputation points.

bobbym, yes. I am on MO, MSE and a few other of their sites.

#475 Re: Maths Is Fun - Suggestions and Comments » Bug when logging in » 2014-05-20 23:47:39

You can't see LaTeX (it's blurred out) in any layouts with a black background, such as Cobalt.

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