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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#51 This is Cool » Talking in binary » 2009-05-13 05:59:59

simron
Replies: 1

My brother and I figured out how to send finger shapes to each other (but we promised not to do any bad ones). Here's how we do it:
First, we tell each other how to hold our hands (we haven't figured out a binary system for that yet)
The first 10 digits tells us what fingers, from left to right, are up and which are down. 1 is up, 0 is down.
The next 8 digits tells us if there are any gaps, from left to right, between our fingers. 1 means gap, 0 means no gap. (Do not count the gap between your hands)
The next 10 digits tells us if any of the fingers are curled. 1 means curled, 0 means not curled.
The next 2 digits tells us if the palms are curled. 1 means curled, 0 means not curled.
Not sure if this makes us the biggest nerds ever... we'll see! tongue
So, here's a few examples:
Both of your palms should be away from you for this one.
111111111101000010000011000000
Live long and prosper!

Your left hand should be facing you and tipped such that your pinky is parallel to the floor. On your right hand, your palm should be facing down.
111111111111011111111111111101
Yay cello! (Only two zeroes, weird...)

#52 Maths Is Fun - Suggestions and Comments » Forum error » 2009-05-13 05:42:45

simron
Replies: 7

Sometimes, when I click on a topic, it comes up with this error:

An error was encountered
Error: Unable to connect to MySQL server. MySQL reported: User mathsis already has more than 'max_user_connections' active connections.
What is this?

#56 Re: Coder's Corner » Python! » 2009-05-10 07:48:24

Yeah, I normally only use betas that have been around for a few weeks or so, I'm not much into new ones when I downloaded Firefox 3.1 Beta and it decided to crash every time it started.

#57 Re: Coder's Corner » Python! » 2009-05-09 10:15:00

Wow, I need an update. I'm currently using Python 2.6...
And the programming tutorial needs only a little programming experience. I think you should be able to go through it with not much trouble.

#58 Re: Coder's Corner » Python! » 2009-05-09 01:49:47

I ran across Python as I was trying to learn C. They are very similar.
Gosh, I know HTML, JavaScript, Flash, Python, and a little C, and I can't even speak any human languages other than English...

#60 Re: Coder's Corner » Python! » 2009-05-08 14:40:36

There's a good tutorial at http://www.nerdparadise.com/tech/coding/python/beginners1/. And also, Google is your best friend in Python. I've learned an unbelievably large amount of Python just by searching Google for what I don't know.

#61 Puzzles and Games » FoldIt » 2009-05-08 10:29:25

simron
Replies: 0

Found this the other day: FoldIt!
It's all about folding proteins. I've done a podcast about it (see signature).
For the record:
Username: simron
Group: Flip It And Fold It
What are your best scores?

#62 Coder's Corner » Python! » 2009-05-08 10:24:23

simron
Replies: 92

Here's a Python thing I found on www.nerdparadise.com:

import random

def find_pi():
	hits = 0
	trials = 0
	while 1:
		x = random.random()
		y = random.random()
		trials += 1
		if x * x + y * y < 1:
			hits += 1
		if trials % 100 == 1:
			print hits * 4.0 / trials

find_pi()

Yay Pi!
I'm currently making one that uses the equation


How many people here use Python?

#63 Re: Coder's Corner » Best Language to Learn? » 2009-05-08 07:19:17

I use Python as well. I find it simple to use, and a good starting block for beginning programmers like me. Also, it doesn't need too much disk space to run.

#64 Re: Maths Is Fun - Suggestions and Comments » Can't upload my avatar » 2009-05-08 06:41:23

Thank you so much!
I was just thinking, could it be an issue with Chrome? Does the forum support Chrome?

#65 Re: Help Me ! » integers » 2009-05-07 11:22:37

Unless we decided to define a mathematical system where 0 isn't an integer... but I don't see where that would lead us.

#66 Maths Is Fun - Suggestions and Comments » Can't upload my avatar » 2009-05-06 10:50:49

simron
Replies: 2

I cannot upload my new avatar below. It keeps reverting to my old avatar when I try. Any suggestions?

#67 Re: Help Me ! » easiest way to change a percentage to a fraction? » 2009-05-04 12:31:39

Search "fraction reducer" in Google. I find it helps a lot with these kinds of problems.

#68 Re: This is Cool » Chocolate, anyone? » 2009-05-04 12:26:12

I also hear that it is a great thing to cheer you up... hmm, can't figure out where that comes from. tongue In fact, there is a chemical in the bean that is a natural stimulant.

#69 Re: Dark Discussions at Cafe Infinity » Optical disc offers 500GB storage » 2009-04-28 11:52:43

I wonder how much it costs...!
In my opinion, it would be more useful as a flash drive, as they are normally more durable (except for my brother's, which caught on fire when he plugged it in).

#70 Re: Maths Is Fun - Suggestions and Comments » LaTeX problem » 2009-04-24 12:16:15

Hi, nurshodiq, and welcome to the forum!
Here's a great site for LaTeX using: http://www.artofproblemsolving.com/Wiki/index.php/LaTeX:About
It sounds like you don't have the nessecary software on your computer. You need MiKTeX and TeXnicCenter to use LaTeX. Please download them in that order. The rest of the information can be found in the link above. I hope that answers your question. Please tell me if you still need help.

#71 Re: Help Me ! » it is solved ..still.. » 2009-04-24 06:47:10

The way I would have done the original problem is:
We have 4 numbers that we wish to arrange in a number without repetitions. So we have 4x3x2=24 ways to do this. To count the number of even numbers, we must deal with the restrictions first. So we have 2 ways to have the units place, 3 ways to have the tens place, and 2 ways to have the hundreds place. Therefore, we have 3x2x2=12 ways to arrange the number so that it is even.
Does this make sense?

#72 Re: Maths Is Fun - Suggestions and Comments » MIFF on XO laptop » 2009-04-23 07:02:48

Thanks, I'm a bit better now. It's probably allergies, the allergy index here is 11!
It's part of the OLPC project here: laptop.org

#73 Maths Is Fun - Suggestions and Comments » MIFF on XO laptop » 2009-04-22 03:32:26

simron
Replies: 2

When I access the forum using a Linux XO, I can't click on the links to bring me directly to a topic. I can only click on the "most recent post". It also takes a little coaxing to hit the message box when I'm posting something. (I need to click a smiley to get to the message box). I also cannot hit the Subject window unless I try to submit the post. And the "Submit" button needs to be tabbed to.
The only reason I'm using the XO is because I'm sick and it's kind of convienient to stay on the couch to use it because it's a laptop.

#74 Re: This is Cool » The Witch of Agnesi » 2009-04-20 03:49:08

Great! Only thing I see a problem with is that if you adjust the radius of the circle while it's still graphing, it won't adjust the graph to fit the new radius.

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