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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#101 Re: Euler Avenue » Special numbers » 2007-01-21 11:33:50

ganesh wrote:

Patrick,
Imagine, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11!!!!!!! big_smile

Haha, true, but why would you count 11!!!!!!! after 9? there's quite a difference between there two. (had to get back on ya wink)

#102 Re: This is Cool » 0.9999....(recurring) = 1? » 2007-01-21 06:09:52

I guess you're trying to create a numberline, but the N4-thing I don't get. There's no such thing as a maximum amount of decimals. That's like saying there's a "biggest number".

edit: Do'h, it's not like saying there's a "biggest number", it's exactly that. We all know there's no such thing.

#103 Re: This is Cool » 0.9999....(recurring) = 1? » 2007-01-21 01:55:55

Since all three variables must have the same value:


and you question is: if A+B+C equals 1, what is A, B and C? The following is true:

So let's solve for A:

And since A=B=C, they're all 0.333... or written as a fraction 1/3.

Now; where is your problem?

#104 Re: This is Cool » INFINITE 0.9 <> 1 PROOF By,Anthony.R.Brown,15/01/07. » 2007-01-21 01:44:14

Can't you just write something like:

And keep the explanations out of the expressions? Because I didn't understand anything of what you just wrote.

#105 Re: This is Cool » Kids and Science » 2007-01-20 09:20:05

Yeah, but I dare you to find such equipment in any school lab smile

#106 Re: Euler Avenue » Special numbers » 2007-01-20 06:46:56

ganesh wrote:

Wonder how people counted before!

Counting things without the concept of 0 was never really a problem, I guess. Why on earth would you count nothing? Waste of time smile

#107 Re: This is Cool » Kids and Science » 2007-01-20 06:41:42

In looking at a drop of water under a microscope, we find there are twice as many H's as O's.

Wow, that's some microscope smile

#108 Re: This is Cool » INFINITE 0.9 <> 1 PROOF By,Anthony.R.Brown,15/01/07. » 2007-01-20 06:34:43

Yeah, that made me ponder aswell luca.. From what you said, ARB, there's either one decimal, or an endless amount. Please write out 1/10, 2/10 and 3/20 out, and tell me how 3/20 is not between the other two.

#109 Re: This is Cool » Math/Science Magazines » 2007-01-17 06:52:32

You're lucky John, it's a very popular journal smile

Toast: http://en.wikipedia.org/wiki/Category:Mathematical_journals

The only math publication I read is the one issued by The Danish Mathematical Society, called MATILDE - which isn't a journal, but it's still about math smile

#110 Re: This is Cool » cool pool physics » 2007-01-15 08:31:01

mikau wrote:

haha, didn't notice 'till now.. The right-click thing is fun

What the HECK? Lol. Oops! I had no idea that was there! Thats a vestage of some previous test. Not supposed to be there! x_x hehe! oh well. Glitches are fun to play with.

Haha, okay big_smile

#111 Re: This is Cool » cool pool physics » 2007-01-14 07:21:51

it can disappear after a matter of seconds if you don't get hit by balls.. just force it into a corner and let it hit the walls untill it suddently goes through the wall.

#112 Re: This is Cool » cool pool physics » 2007-01-14 00:11:00

luca-deltodesco wrote:

what? ive never seen a ball dissapear, the only time a ball will ever dissapear in this simulation, is in the event that two collisions occur at the EXACT same time, because it will only process one of them, and the other will then be implanted in a wall or something, and i dont test for this, so it will then just move through it, but thats not very common.

I've done it 5 times now, so obviously it can't be the only time a ball will ever disappear.

#113 Re: This is Cool » cool pool physics » 2007-01-13 23:18:20

luca - if you click and hold one of the keys, the ball will eventually disappear

#114 Re: This is Cool » cool pool physics » 2007-01-13 22:47:13

haha, didn't notice 'till now.. The right-click thing is fun big_smile

#115 Re: Help Me ! » Elliptic... » 2007-01-13 11:20:48

mathsyperson - I'm not sure what it means, but maybe the name of the topic can give you a clue? "Elliptic"

#116 Re: This is Cool » Genius Answer! 1/3 = » 2007-01-13 10:21:26

Imagine what a thread like this could do to one's karma, if there was a karma-system on this forum smile

#117 Re: This is Cool » cool pool physics » 2007-01-13 09:59:55

Cool game smile The whole thing with directions seems very realistic..

#118 Re: This is Cool » My ghost zombie convergency theorem! » 2007-01-13 09:52:28

yeah, I was going to explain what I meant, but forgot it. By fixed I meant that the damage dealt to a monster wasn't determined by a formula that looked like, or similar, to:


If it was, the method wouldn't be effective, becuase you could end up doing near 0 damage if enough monsters were gathered.

Varying is supposed to mean that, for example, the spell called Frost Nova does 34-40 damage instead of 37 all the time. This doesn't mean that all monsters get hit by the same amount though. Say there are 5 monsters, then the following could be a possible event:
Monster #1 recieves 34 damage
Monster #2 recieves 37 damage
Monster #3 recieves 40 damage
Monster #4 recieves 38 damage
Monster #5 resists

Another important note, regarding this method, is that the mana you use per spell doesn't scale with the amount of monsters.

#119 Re: This is Cool » My ghost zombie convergency theorem! » 2007-01-13 09:03:57

The animation got me thinking about the days I played world of warcraft smile In there I would take advantage of the very behavior of the mobs you're describing. Here's how it went: I was playing a mage. Mages have various spells which does a fixed, though varying, amount of damage to mobs in a certain radius. These are called AoE's(Area of Effect), and, as you might have noticed already, they can come in handy when the mobs are able to stand at the same spot. You'd just make some monsters, the more the better, run after you - and then run in circles 'til they were standing tight. After that, it was just hitting your AoE spells tongue

#121 Re: This is Cool » Genius Answer! 1/3 = » 2007-01-09 02:02:10

Well, I just learned something there Anthony! What I learned is, that I should never even consider reading any of your posts again. You don't listen and you don't make sense.

#122 Re: This is Cool » Genius Answer! 1/3 = » 2007-01-08 07:03:30

I fail to see how you go from A = 1/3 * 3 to A = 1/3...

#123 Re: Maths Is Fun - Suggestions and Comments » Forum Enhancements » 2007-01-08 02:20:27

rida wrote:

I think you have be at least a member to be able to give points to members because most novices register and never come back.

This doesn't really matter though, does it? If they find a post usefull, why not show it?

#124 Re: This is Cool » My Great Theory » 2007-01-08 02:10:10

Anthony.R.Brown wrote:

But who makes the rules! i.e is a Glass half empty? or half Full?

Neither, it has 50% water(with it's impurities) and 50% air(with it's impurities).. No need to be negative or positive about what a glass contains, it just does wink

#125 Re: Dark Discussions at Cafe Infinity » Jinxed career..... » 2007-01-07 02:31:15

Interresting reading.. School-life shortened to < one page smile

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