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f''(x) = [(25-x)^2 * (25-4x)]'

f"(x) = 2(25-x)*(-1)*(25-4x)+(25-x)^2*(-4)  <--- used product and "core rule" (don't know if that's correct in English). Kjerneregelen.

f"(x) = (25-x)(8x-50)-4(25-x)^2

f"(x) = (25-x)[(8x-50)-4(25-x)]              <---- where did the ^2 go, and where did the [ ] come from??

f"(x) = (25-x)(8x-50-100+4x)

f"(x) = (25-x)(12x-150)

That's what I'm wondering about. The ^2 in line 3... is suddenly gone in line 4. Looks like they changed it with [ ]. Why/how.... what?

Aaaaahhh, damn it!!! The product rule, of course! Jesus, I always fail to remember those rules! So many of them :S

Have some questions about derivation (correct?).

1.    h(x) = 2xe^x   
Found it to be: h'(x) = 2e^x    Agree?

2     k(x) = 2x * (ln x)^2
      k'(x) = ________  have no idea about this one.

Would be great if someone could show me step by step how to solve this one.

a_member wrote:

First you differentiate to find the gradient:
f'(x)=2*e^(2x-1) (not 2x*e^(2x-1))
At x=1 the gradient is 2*e^(2-1)=2e

The tangent at x=1 is therefore a straight line with gradient 2*e
So we have a straight line of the form y=2ex+c where c is a constant

Sub in x=1, y=e to get
e=2e+c
c=-e

So the tangent is y=2ex-e

Thanks, I get it now.

Hmmm, not really sure about that.

The function f is given by f(x) = e^2x-1

- Find the equation for the tangent (don't know if that is the correct word in English) in the spot (1, e)

The answer is: y= 2ex-e

Could anyone show me how to do this? My guess is to first ... ehm, derivate (??) it? You know:

f(x) = e^2x-1

f ' (x)= 2x * e^2x-1     <---- if that is correct, I don't know how to proceed further.

Flaming_Maniac wrote:

700/760 = e^-.125x

ln(700/760) = -.125x(lne)

lne = 1

(ln(700/760))/-.125 = x

.657905 km = x

657.905 m = x

Thank you very much, Flaming! Forgot that the answer I first get is in km, and that I have to give it in m... ffs! Obrigado!!

Gooners wrote:

I haven't seen you in ages

Studying ya know!
Then I remembered that I always got a lot of help at this forum, so... why not use it

Ok, I've got this problem:

Now, this is the function for the air pressure x km above sea level. p is messured in mm Hg (milimeters)

Question is, calculate how high above sea level are we when the pressure is 700 mm Hg.
As you can see, this is equations with natural log, ln

The answer is supposed to be: 658 m, but I can't figure out the way to the answer :S



Need help with this one, please Detailed step by step answer would be lovable!

(Guess I put 700 for x in p(x), right?) But after that....

Hmm, Mec really had some fucked up hit reg.

ZeqTr wrote:

ga en tilbake jeg ;d

You crazy vikings!

battlejim wrote:

SteikeTa wrote:

Actually, the F35B CAN dodge missiles. With and without flares! If you are a better player/pilot, you will take down the J10! You have missiles and mg's.... if you don't like it, don't use that plane. But noooo... now we will get a patch because people have complained a LOT! Don't have to stay over 800 to dogde missiles, it's perfectly capable to do that under that altitude as well.

Hitting the J10 with missiles is no problem either. Don't have to keep the J10s down on the ground (base raping Wake airfield).

Should fix things like squad bug, CTD (maybe that's just this computer, I don't know), getting rid of cheaters... probably wont be able to. They removed the ability to jump and shoot, chuck C4, and so on and so on....

What are you dodging with F35 w/o flares?

As far as I know it can dodge a missile by %0.01 luck and it can dodge %90 of missiles that are shot from its front and almost all the missiles that are shot from its front with 15 degree angle.

Question: Why would you shoot the missiles like that?
Answer: You wouldn't.

F35 can dodge water to a certain limit BTW. If you ever tried to hover over sea and accidentally let the jet get in to water you know that it doesn't explode like others.It is 3BAR water-proof.

SO this means its all balanced right?

Other jets can't do the lame strato-run and they explode when they fall in to water immediately.

That makes F-35 pure win.

Ehm.... ok there Jimmy...

Hakei wrote:

SteikeTa wrote:

Actually, the F35B CAN dodge missiles. With and without flares! If you are a better player/pilot, you will take down the J10! You have missiles and mg's.... if you don't like it, don't use that plane. But noooo... now we will get a patch because people have complained a LOT! Don't have to stay over 800 to dogde missiles, it's perfectly capable to do that under that altitude as well.

Hitting the J10 with missiles is no problem either. Don't have to keep the J10s down on the ground (base raping Wake airfield).

Should fix things like squad bug, CTD (maybe that's just this computer, I don't know), getting rid of cheaters... probably wont be able to. They removed the ability to jump and shoot, chuck C4, and so on and so on....

If you'd like, I can come to a Euro wake airshow server and we can have a 1v1 - You have F35, I have J10, even with a 300 ping I bet the better jet will be shown ;/

Yeah, we can do that. I'm back in school now, so wait til next time I have a vaccation!

Actually, the F35B CAN dodge missiles. With and without flares! If you are a better player/pilot, you will take down the J10! You have missiles and mg's.... if you don't like it, don't use that plane. But noooo... now we will get a patch because people have complained a LOT! Don't have to stay over 800 to dogde missiles, it's perfectly capable to do that under that altitude as well.

Hitting the J10 with missiles is no problem either. Don't have to keep the J10s down on the ground (base raping Wake airfield).

Should fix things like squad bug, CTD (maybe that's just this computer, I don't know), getting rid of cheaters... probably wont be able to. They removed the ability to jump and shoot, chuck C4, and so on and so on....

Hakei wrote:

SteikeTa wrote:

headhunter345 wrote:

Sounds like they nerfed the J10 a fair bit lol

Instead of them changing the J10... why don't YOU get better at using the F35B? What will you and the rest of the people who can't fly say when you still get shot down by the J10? Complain again and want a new patch to nerf the J10 more???

Oh my god... I suck at the game, please make a new patch so it will be easier for me to kill others!!!!! Damn I was playing today at Karkand and got owned! Please make a patch so that it will be easier for me to spam grenades/claymores and make the G36E more accurate, since I can't hit with it!!!

Because no matter your level of skill, an average J10 pilot can do very well against an F35 pilot.

I've gone up against amazing J10 pilots and killed them with 2 missiles through flares, I've gone up against pub randoms in the same situation and wasted 20+ missiles.

Point is, the J10 hitbox is random, and it shouldn't be, it's not a case of crying about skill. On an equal point, it's no different from giving a class 500 Armor and a decent weapon.

Same goes with the G36E, very powerful weapon to the most powerful class, not crying - just a huge imbalance that needs to be fixed to make the game better.

That's whats makes it challenging.

Then why not take away the F35Bs abillity to reach speeds up to 3000-4000? The only plane that can do that. Huge advantage over every other plane. Should be taken away! The J10 turns sharper... should be taken away... the J10 is more inacurate when it comes to using the mgs... should be fixed! The F35B is more stable... this should be take away...

See? Some things just takes practise... if you can't handle it, begging for a patch is ridiculose! But that will always happen... damn, someone is better than me, make me a patch so that I can kill him!

headhunter345 wrote:

Sounds like they nerfed the J10 a fair bit lol

Instead of them changing the J10... why don't YOU get better at using the F35B? What will you and the rest of the people who can't fly say when you still get shot down by the J10? Complain again and want a new patch to nerf the J10 more???

Oh my god... I suck at the game, please make a new patch so it will be easier for me to kill others!!!!! Damn I was playing today at Karkand and got owned! Please make a patch so that it will be easier for me to spam grenades/claymores and make the G36E more accurate, since I can't hit with it!!!

SgtHeihn wrote:

Holy fuck, get over this stupid shit.
http://i179.photobucket.com/albums/w285 … thread.jpg

Like you wrote: Gotta love the free fucking country concept.

SgtHeihn wrote:

Holy shit this thread needs to die. This has turned into a group of 15 year old's saying they are better then each other.
http://i297.photobucket.com/albums/mm21 … ad_die.jpg

Just like threads about inf. players........

Damn it, I hate people who jump a lot!! I do it too of course. Good way to not being killed.

And jumping makes you look like a fag? Really? Gays jump a lot? Never seen that in the real world. Will remember that the next time I see a fag. "Hmm, a homosexual, let's see if he will start jumping".

Edit: and by the way, I don't think he jumps a lot to make his fake stats look better... he probably hate waiting 15 seconds to respawn. I know I do.... did, don't play anymore though.

Ok, many reps. From 8-12. Heavy wheights and few reps just work out your mucles fibres type 2B and makes more of them. They are the hardest to build actually. If you want to be explosively stong and big (not defined), that's the way to go. You want to work out your type 2A fibres, to look defined and clearly see your muscles, right?

Free wheights, many reps, and creatine yes, works out pretty well. If you use creatine, remember to drink a lot of water. Maybe your genetics wont let you have a musculer (spelling?) body. It's easier to increase type 1 fibers. Not so explosive but endurent fibers.

There are many programs. I usually do upper and lower body every other day. Have at least one day rest before you work out the same muscle again. There are no need to use protein shakes or other crap. IF you eat well and balanced, you get all the proteins, fat, carbs, minerals and vitamins you need. Both essential and non-essential vitamins. Of course, if you don't... then it's not a bad idea.

Remember, if you want to look defined, you need to reduce your body fat. Since you said you are thin, then that's probably not a problem right now. The first place fat is stored and last place fat is burned, is from your stomach area.

Boring.

God work lad... you done griiit! +1

Wow, it's so cool to write the word fail....

Incantation wrote:

feeling you cry about that all the time

hey nerd, have a look at vid 3. jets are pests, nothing more. and easily disposed of. some of those clips are 3-star flight-suit aviator sunglass-wearing nerds going down

The more you write, the more you sound like a goofy nerd your self.

I was impressed by your proning. Happened often... very very often.

Marconius wrote:

Iron, he ended up tweaking the ejection port a bit and installed a new bolt handle which spits the shells forward.  We've had a few times where we've shot 2 or 3 boxes of ammo with no FTEs...I think we usually got one or two within 200 or 400 rounds fired.


He also got a neat muzzle-brake and a new foregrip with a picatinny rail, plus a holographic sight.  Too bad he's in Sweden; I miss firing that thing.

Why is firing that thing so fun?

No, don't own a gun. No reason in the world for me to own one....

Why in the world would I want to remember that?? To you who know your pid.. do you know your own social security nr, if not......

hodge2003 wrote:

None of them have their Airborne Ribbon yet.  That's pathetic...

Yeah... it's just crazy!!

Guy.Buddy.Friend wrote:

Well, I look like a numb nuts then. I haven't ever seen that. Sorry for the spam. Mods can delete if you wish.

Could have searched for it....

Tushers wrote:

ehy big buddy

see the thing is i dont rly care...

Yes you do. You just can't write properly that's all.

Nice thread revive but damn you should really start using punctuation makes things more easy to read and it looks better because without it just looks like one long sentence but alright if that's your style then ok you keep on doing what you feel is good for you and it will all work out just fine right yeah it will so have a nice day and good night

Sounds like you are the nerds here...

nighthawk843 wrote:

SteikeTa wrote:

nighthawk843 wrote:

Why are you posting this? Does it matter anymore? Why do you care about something so much you want to film it and put it on this website with all the other rubbish you post. Its not informative, interesting or remotely watchable...stop playing BF2, learn like me, to let things go.

Why do you watch it then? If it's not informative, interesting or remotely watchable, why do you watch it? Why do you reply in this thread? Why do you care about something so much that you want to think about something to write and put it in this thread with all the rubbish you post?

You really are a twat. Starting a fight for not reason except you just feel like it. I didn't watch all of it, I watched about 20 seconds then thought, no he hasn't changed, turn it off. I replied so he would stop wasting peoples time with the crap he posts. I'm allowed to write what I think, I really don't care what he or you thinks, because I'm never going to meet you or him (thankgod) in real life. Tbh I don't care if your overweight and just like being the bigshot on some forum on the net. I don't post rubbish, in fact most of the stuff I post actually is helpful. Although why people like you seem to think that immediately someone criticises they care so much I don't know...still hopefully you will learn one day that you may need to be wise enough to leave things rather than making molehills out of them.

What? Can't take criticism? If you can't take it, why should he? It's a forum. He can post what he want. Just like you.. and if you didn't care what I thought then you wouldn't have replied.

You replied because you wanted to stop other people from wasting their time? When the fuck did you start deciding what people like or not? If you don't like it, how the hell can anyone else do?? Give me your nr so that I can call you when ever I need to decide on things, ok?

still hopefully you will learn one day that you may need to be wise enough to leave things rather than making molehills out of them.

Hope you will follow your own advice kid.

ReDmAn_ThE_uNiQuE wrote:

Sgt. Sergio Bennet 3rd wrote:

Tushers wrote:

bennet dont u know not alot of people like you here, i thought that was old news to but tbh you cant snipe my lil sis can snipe and shes retarded i think or maybe thats me

...and im still BETTER than you

... no im better, NO IMM better no IM better.. nuh uh, im better...

rlly who gives a shit.

damn kids.

Hehe +1

nighthawk843 wrote:

Why are you posting this? Does it matter anymore? Why do you care about something so much you want to film it and put it on this website with all the other rubbish you post. Its not informative, interesting or remotely watchable...stop playing BF2, learn like me, to let things go.

Why do you watch it then? If it's not informative, interesting or remotely watchable, why do you watch it? Why do you reply in this thread? Why do you care about something so much that you want to think about something to write and put it in this thread with all the rubbish you post?

san4 wrote:

Why is your sniper rifle cross-hair red?

Maybe he changed it in the options menu?

Great hit reg and you are quite good at proning.

No claymore and grenade spamming.

Punctuation is a good idea.

SteikeTa wrote:

SteikeTa wrote:

Crap...

When I used to play Sharqi, it was back in the good old days when you could jump and shot.... chuck C4 far faaaar!
Got the expert explosives that way. Never used choppers as much. If I did, I was usually the pilot and had crappy gunners. I'm jealous.

Mmmm, the good old days.........

cablecopulate wrote:

The bullet ammunition is unlimited on all attack choppers. When you use it up it reloads.

Hmmm, no I think you have to go back for ammunition. But it's been a long time since I've played though. Could be wrong.

SteikeTa wrote:

Crap...

Damn I would have been so fucking irritated (understatement) if I were USMC.

Crap...

I liked it. Especially how you started it and ended it... +1

Ender2309 wrote:

Havok wrote:

Ender2309 wrote:

you've given us minimal info on your video card. elaborate please.

I'm assuming he has an 8800GTS 320MB edition by the 320 in his post.

i was guessing the same but its good to be positive.


@OP: are you on wireless? that'll do it.

I have the same conditions playing wireless or not...... no change. Don't think it's that.

100% Irishpride wrote:

Im almost certain it was mate, I was flying Kubra ([JFG] 24/7 Kubra) 2 days ago, the mig chasing me spammed missiles multible times and i dodged all, he then went whining saying i didnt have a hitbox.

Hehe, longer than 2 days ago since I played Kubra

An ok PC to play mine sweeper on.....