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

You are not logged in.

## #2 Jokes » Groaner :P » 2008-12-16 11:21:03

AshJones555
Replies: 0

Why did the mathematical tree fall over?

Its discriminant was equal to less than zero.....

Couldn't resist

## #3 Jokes » Festive Maths Joke » 2008-11-29 11:22:24

AshJones555
Replies: 7

I apoligise as I'm not certain how to put this in latex fully but I'm pretty sure you can use some imagination with the square root.. ^^

What did the mathematician say after christmas lunch.....?

Fixed the LaTeX for you

## #6 Re: Dark Discussions at Cafe Infinity » how old » 2008-04-05 04:03:12

Zach wrote:

I've been endorsing good grammar and spelling for 54 years.

Is that you're mission in life?

## #7 Re: Exercises » A Challenge » 2008-03-31 06:49:46

i can, i learnt from an instructional video where all the 6 faces are named, so the one on top would be the up face for example, shown as U and so on for all 6.
Then it's just a matter of memerizing algorithms

...16

## #9 Re: Maths Is Fun - Suggestions and Comments » Chess » 2008-03-31 05:33:09

oh and:
1: e4  Nf6
2: Bc4  Nxe4
3: Qh5  Nc6
4: Qxf7

basically the same as Jane.

## #10 Re: Ganesh's Puzzles » 10 second questions » 2008-03-31 03:35:42

I'm not sure if this is right because im not sure if saying 8² counts as using one 8 or two but here's my attempt at #627 anyway:

## #11 Re: Maths Is Fun - Suggestions and Comments » Chess » 2008-03-31 02:47:49

1: Nf3  Nf6
2: Ng5  Nc6
3: e3  d6
4: Bc4  Bf5
5: Nxf7  Bd3
6: Nxd8  e5
7: Nxc6  Be7
8: Nxe7  Bxc4
9: Nf5  O-O-O
10: b3  Bd3
11: cxd3  Rf8
12: Ne7  Kb8
13: Bb2  e4
14: Bxf6  Rxf6
15: Nd5  Rxf2
16: Kxf2  exd3
17: Qf3  Rf8
18: Nf4  d5
19: Nc3  d4
20: exd4  g5
21: Ne6  h5
22: Nxf8  g4
23: Qf5  h4
24: Ng6  c6
25: Re1  g3
26: hxg3  hxg3
27: Kxg3  Kc7
28: Re7  Kd6
29: Qc5

I'm a bit of a begginer but i managed to win, the computer seems to use a variety of decent moves and seemingly pointless moves and I agree that a + for check should be included in the coding because it's interesting to see how check could develop into forced mate etc.

## #13 Re: Dark Discussions at Cafe Infinity » i dislike people » 2008-03-30 11:53:20

Identity wrote:

It's like the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the person watching the...

... person watching tv.

or an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting an artist that's painting
...an artist

## #14 Re: Jokes » British joke » 2008-03-30 11:27:30

I'm guessing that the British guy was implying that he had no particular need to wash his hands whilst assuming that the American had to wash the pee off his hands after accidently peeing on them??

## #15 Re: Jokes » My friend's calculator » 2008-03-30 09:39:33

lol
p.s. anyone who achieves absolute zero gets a cookie

## #16 Re: Exercises » Basic algebraic terms » 2007-01-26 12:23:29

a) 8x, b)-ab, c) 11cd³, d) 7s+5t, e) z²-z, f) 3a+4ab, g) 4.5ad²+7a²d, h) 8mn+3m³n+5mn³+m²
are these correct?

## #17 Dark Discussions at Cafe Infinity » barber paradox » 2006-06-01 09:03:46

AshJones555
Replies: 17

A town has only one male barber. If he shaves every man in the town except for those who shave themselves, does he shave himself?

## #18 Re: Dark Discussions at Cafe Infinity » days-hours-seconds-->too long?? » 2006-05-23 09:09:05

Einstein's theory of relativity has something to do with it i think.

I remeber a quote from either Einstein himself or someone trying to 'translate' his theory that went something like; "sit on a hot stove for 1 minute and it will seem like 30, sit on a bench in the company of a pretty girl for 30 minutes and it will seem like 1"

It might be because the part of the brain which is consious of time roams free when you are, for example waiting to go on a ride in a theme park but when on the ride itself, the similar part of the brain is distracted by such things as how much fun you're having or how big the next drop looks.

## #19 Dark Discussions at Cafe Infinity » Principia Mathmatica » 2006-05-23 08:23:03

AshJones555
Replies: 4

I have heard of a book that supposedly 'changed the world' called 'Principia Mathematica' by Sir Issac Newton (est. 1687).

## #20 Re: Jokes » mathematicians rule » 2006-05-21 05:23:13

oops sorry, I didn't realise

## #21 Jokes » mathematicians rule » 2006-05-21 01:24:44

AshJones555
Replies: 5

There are three men on a train. One of them is an economist, one is a logician and one of them is a mathematician. They have just crossed the border into Scotland and they see a brown cow standing in a field from the window of the train standing parallel to where they're sitting.
The economist says, 'Look the cows in Scotland are brown'
The logician says, 'No. There are cows in Scotland of which one, at least is brown.'
And the mathematician says, 'No. There is at least one cow in Scotland, of which one side appears to be brown.'

## #22 Help Me ! » trigonometry » 2006-05-20 23:58:20

AshJones555
Replies: 3

I'm currently doing trigonometry at school and i understand simple stuff such as;

where right angle is at the bottom right of trangle and hypotenuse is facing left, y = base and 12
= opposite to hypotonuse (can't seem to upload a picture)

Tan47 = 12/y
y x Tan47 = 12
y = 12/Tan47
y = 11.19018103
y = 11.2 (rounded to 1d.p.)
(please tell me if you work it out otherwise)

I know it's quite vague but is there any way i could extend my trigonometry studies?

## #23 Introductions » new member » 2006-05-19 04:05:52

AshJones555
Replies: 9

I'm new to the forums, i'm 14 and in year 9 at St.Ives Secondary School, Cornwall, England
I have a keen interest in maths, science and english
I study maths and science at a gsce level at home because ive already basically mastered all of the year 9, 10 and 11 syllabus.
My dream in life is to become a doctor and maybe even go on to become a consultant

## #24 Re: Help Me ! » Need help solving the 'Who owns the fish?' puzzle » 2006-05-16 09:08:53

sort of, ive set it out like so;

1 = red, or yellow
2 = blue
3 = red or yellow
4 = green
5 = white
1. owner = Norweigan, pet =, drink =, sport =
2. owner =, pet =, drink =, sport =
3. owner =, pet =, drink =milk, sport =
4. owner =, pet =, drink =coffee, sport =
5. owner =, pet =, drink =, sport =

I have currently come to a 'brick wall' and so i was hoping for advice on how to solve the puzzle itself.

## #25 Help Me ! » Need help solving the 'Who owns the fish?' puzzle » 2006-05-15 09:16:09

AshJones555
Replies: 5

Hi, im a 14 year old boy from Cornwall and i need help solving the: 'Who owns the fish?' logic puzzle and i hope you take the time to read my situation and try as hard as you can to help.

Here is the link to said puzzle: http://www.mathsisfun.com/logicpuzzle.html

Let's say the houses are laid out like so: 1 2 3 4 5, one being on the far left of the row and five being on the far right of the row.

Here's what i've come up with so far...

1. The Noweigan lives in the first house and lives next to the blue house, so since there is no house to the left of number 1, number 2 must be blue.

2. The green house is on the left to the white one, so green can't be number 1, 2 or 5 because if it were 1, that would mean white would be 2 when in fact 2 is blue. It can't be 2 because, once again 2 is blue and it cant be 5 because it has nothing to the right of it.

3. Subsequently white can't be 1, 2, or 3 because number 1 has nothing to left of it. It can't be number 2 because it's blue and it can't be number 3 because that would mean number 2 is green when it is in fact blue.

4. This means number 4 is green because, as mentioned earlier it can't be 5 and therefore number 5 must be white.

5. This leaves me with the following discoveries; 1 and 3 must be be red and yellow or vise versa, the owner of number 4 drinks coffee because the house is green, the Brit lives in either 1 or 3 because he lives in a red house, the hockey player is in number 1 or 3 because the owner of the yellow house plays hockey, the horse owner lives in number 2 or 4 because the man who keeps horses lives next to the one who plays hockey.