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#951 Re: Help Me ! » What is the gf of... » 2014-05-21 01:04:53

Bobbym has a thread on how to get the GF of the Fibonacci numbers experimentally. Look over there.

#952 Re: Help Me ! » What is the gf of... » 2014-05-20 16:37:34

Another way you can get the GF is by noticing that the numbers follow the recurrence:

#953 Re: Help Me ! » What is the gf of... » 2014-05-20 16:33:21

Thanks. It directly follows from your gf, because we need to sum up all of the gf's for different n's.

#954 Re: Help Me ! » What is the gf of... » 2014-05-20 16:26:07

Hi guys

I have found this to be the gf from bobbym's gf:

#956 Re: Help Me ! » help me! Q=D={x|x is an integer such that x^2=2) » 2014-05-20 08:32:38

I do not agree with either answer to Q3. You have not defined which measure for distance we are using, so I will say that it's probably Atlas mountain.

I'm not sure hiw many axiims there are in math, though. I know that we have 9 in geometry.

#957 Re: Exercises » What do you think? » 2014-05-20 08:24:33

Hi guys

Does SE use $$ for LaTeX?

#959 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-20 02:02:22

That is very true. That is the most important thing.

#961 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-20 01:56:35

Not at the moment. Luckily, things seem to be okay at the moment. Rebuilding all those cities will we a big problem, though...

#963 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 07:36:30

Don't worry, we have several bottles here.

#964 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 07:11:42

Don't worry about me. I'm up on a hill, the water would need to be veeeeery high in order to reach me.

#965 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 06:31:35

The towns water supply is not a river that flooded. We're mostly able to live as we used to here.

#966 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 06:17:27

There doesn't seem to be real threat here in my town at the moment, for most people. The real problem are several towns demolished by the flood and several threatened to yet be demolished.

#968 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 06:04:26

I'm not sure if you really want the floods. One small town near our capital was completely destroyed. The victim count as the media report it is rather low, but the guys on the field say it's much higher.

#969 Re: Help Me ! » (Less than) 21 Trig Questions from Amrita » 2014-05-19 04:27:48

Well, I'm using it just to get an answer. I was searching for an elegant way to solve it.

#970 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 04:25:58

Well, over here we're in no danger so far.

Now some meteorologist is suspecting that snow from mountains of Bosnia will start melting soon which might bring about another wave. I'm not sure how true that is.

One of the most frightening things is that there is a danger of the town Šabac being flooded which is really not good because it is the central part of Serbia's chemical industry. If anything happens there...

#971 Re: Dark Discussions at Cafe Infinity » Serbia floods » 2014-05-19 03:48:43

Well, there is a place nearby here which was flooded, but the rest of the town is okay. The rest of Serbia, not so well, though.

#973 Re: This is Cool » I need a help » 2014-05-19 03:13:18

Hi cmowla

You cannot really use derivatives like that.

#974 Re: Help Me ! » (Less than) 21 Trig Questions from Amrita » 2014-05-19 02:31:37

bob bundy wrote:

I don't see why it must be done numerically. You can just say cos(2 theta)=sqrt(7)/4 => sin(2 theta)=+/- 3/4.

Earlier, squaring was involved, so there's no guarantee that either answer is correct.  You have to check them by substitution into the original problem.

Bob

Just looking at the new question now.  smile

Well, in the squaring method, the other solution, with -sin(x)+2n is needed.

Also, the answer for this one seems to be 0.96, but that was M's doing.

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