Dave

I've had enough of this utter nonsense, hence I'm locking the thread. Doron, if you continue to post this stuff, I will stop you posting in the Mathematics fora. As I've said before: mistakes are fine; ignorance to those mistakes is not.

We have a special option in the Thread Options pop-up to edit the thread (and hence change the title).

Co-incidentally, using arrays with indexes starting from 0 is much nicer on the eyes: $a = array( array(12, 77), array(11, 93) );

When you define arrays inside arrays, you need to call the array function. For example for the simple array $a[0][0] to $a[1][1]... $a = array( 0 => array( 0 => 12, 1 => 77 ), 1 => array( 0 => 11, 1 => 93 ) );

Well, they do represent rates of change.. it's just I'm a little confused to what the question actually is.

Maybe you can find something that'll differentiate to give that angle addition?

Rate of change of what? I'm confused.

I don't recall such a thing; a quick google didn't turn up anything of interest, but I could be wrong.

It's not that they won't work, rather that the answer you get is rather ugly. When you differentiate/integrate a trigonometric function, the answer turns out to be nice because we assume the angle is being measured in radians - e.g. sin differentiates to cos. If we were to use degrees when differentiating, we'd have 180s and pi's floating about everywhere.

If you fix epsilon, then you can't go and play around with it like it's variable. Your argument from the "Let epsilon=1" seems to be rather non-sensical, to be the least... n = n + epsilon?!? Don't think so.

euhm... don't think so.

It should be said that the motivation for studying imaginary numbers originated from solving quadratic equations; when you have a negative discriminant, you get complex roots for the quadratic.

As much as I'm loving this endless debate, I would like to just step in and say that whilst mathematical discussion is perfectly okay, insults are not. If the thread goes down those lines I'll just close it.

It's unlikely you'll encouter fields/groups on the general undergraduate physics course. Group theory is quite an important part of higher quantum mechanics (or so I've heard).

Use \frac{5}{\sqrt{25}} - the first argument of \frac lets you specify the numerator, the second will give you the denominator.

Here's an ultimatum for you Doron: Either post some mathematics that uses formal definitions and makes sense or I will be forced to exclude you from the mathematics forum. I have warned you about posting your "ideas" on here and I'm not prepared to tolerate yet more talk of xor's and how everyone in mathematics is wrong about everything. Posting bad mathematics is acceptable. Ignoring everyone else's criticism and posting the same tripe over and over again is not.

It'll make little or no difference to everyday usage, as it says in the article. I spent a week with HT enabled and a week with HT disabled. Didn't notice a thing. (Note: I also edit video on a semi-professional level using Avid Xpress Pro. However, I didn't find much improvement there either tbh.)

The simple answer is: "you don't". Directory listings are usually (read: almost always) a bad thing.

If you don't like it, just hit the "go to www.google.com" link at the bottom of the page.

Try dumping the profiles folder; usually sorts most problems out.

Yeah, it really is. The boot optimizer is absolutely amazing. What is not amazing is why boot speeds should get like that after only a couple months usage. Silly XP.

teehee I must get on here more :\

Getting hl2 here, and another gig of ram for the computer. And the usual bits and pieces.