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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#1 Re: This is Cool » Horraaaaaay!!! :-d :-d :-d » 2006-04-08 08:05:31

I picked up c++ easily after learning java, java is simple enough to allow you to write extremely complex code without too much knowledge yet is strict enough to make sure that you don't get lazy (python coders complaining about else if (python uses elif)), and although it doesn't teach you about assigning memory it does make sure that you decide on a type for everything and use type conversion methods to swap between types which is a  good grounding for memory management.

Java also holds enough limitations to ensure that a coder learns another oop language like c++, by limitations I don't mean to put it down, it can do almost everything if you know how but doesn't always do things in an elegant way.

PHP and SQL are just for web designers and database management, it's easy to make money with them but they're not much fun, and non-oop languages are becoming redundant.

#2 Re: This is Cool » Cold Fusion » 2006-04-08 07:46:36

That's how carbon dating works, you look at the average number of radioactive atoms in fresh carbon and compare it to the number in an older chunk, the more decay the older the carbon.


There's a comic series called transmetropolitan based somewhere in our future, in that series mankind had covered mercury in solar panels which supplied enough energy for the whole planet.


+ cold fusion would be great, radioactive energy is really dangerous (look up the Chernobyl reactor), but solar power is probably the way to go as the energy from the sun is either used or just beamed off redundantly into space and there's more than enough of it (for the next 13 billion years or so at least)

#3 Re: This is Cool » Implicit Graphs » 2006-04-08 07:31:05

A true fractal is a repeating pattern that repeats itself and looks sort of the same no matter how far you zoom in or out on it, there are a couple formulas to make them, some alogorithms, some equations,

the simplest fractal I know of is an equilateral triangle with an upside down triangle inside of it and triangles inside of each triangle formed by the placing of the second one, I'll upload an image of it soon.

#4 Re: This is Cool » Proof that 1 = -1 » 2006-04-08 07:21:26

There's also this one:
0=0
x*0=0

divide both sides by 0
x=1

and 0/0 is often accepted to be equal to 1 (as there's exactly one 0 in 0)
but likewise there are an infinite number of 0s in 0 so it's often not accepted too

#5 Introductions » A new guy » 2006-04-05 11:06:50

kimrei
Replies: 8

Hi, this is me:

I live in SA, technically I'm a highschool dropout in his final year, I love to argue, learn new things, make things, be stressed, challenged and pressured.

I know far too many programming languages and read far too much, took 14 subjects when I was in school, draw, paint, sculpt, design and create jewlery (of the kind which requires a gas burner, pliers and tubs of acid to make) and in general just spend too much time inside my head.

I also love ice skating and watching people in shopping centres.


I also don't normally join forums, but I like the look of this one.


So hi, hope it's nice to meet you and that it's nice to meet me for you too.

#6 Re: This is Cool » Proof that 1 = -1 » 2006-04-05 10:52:59

Hi,

Try this:

if x = 1
then
x = x²
therfore
x-1 = x²-1
factorise:
(x-1) = (x-1)(x+1)
remove LCD
1 = x+1
take accross the one
0 = x
And x = 1 in which case:
0 = 1

If you want multiply both sides by 2 and subtract 1 to get
0*2-1 = 1*2-1
which is the same as
-1 = 1


See if you can spot the problem, there is one

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