Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #1 20121116 12:33:05
Really Difficult Differentiation! Help please!i49.tinypic.com/ose3v5.jpg #2 20121116 13:14:35
Re: Really Difficult Differentiation! Help please!Hi BarandaMan; that is all I can make out. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20121116 13:45:09
Re: Really Difficult Differentiation! Help please!
Thank you! You are right so far!! The end is 1/yLi^y #4 20121116 13:58:26
Re: Really Difficult Differentiation! Help please!Hi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #5 20121116 14:08:57
Re: Really Difficult Differentiation! Help please!Yes exactly, the little y is meant to be gamma so treated differently from the big Y! #6 20121116 14:15:13
Re: Really Difficult Differentiation! Help please!Hi; You can expand that to: The first two terms are just constants and disappear, you should be able to differentiate the next two terms wrt Pi. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #7 20121116 19:52:07
Re: Really Difficult Differentiation! Help please!I can do the fourth term as the Pi just dissappears right? #8 20121116 19:56:03
Re: Really Difficult Differentiation! Help please!Hi; Simplify it to: In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #9 20121116 22:47:52
Re: Really Difficult Differentiation! Help please!
Thank you bobby, how/why does that rule work? #10 20121117 00:11:41
Re: Really Difficult Differentiation! Help please!Hi; Yes, it is always the case. http://www.mathsisfun.com/algebra/exponentlaws.html In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #11 20121117 07:18:14
Re: Really Difficult Differentiation! Help please!Ok thank you for all your help bobby. I really cannot do this. #12 20121117 09:42:11
Re: Really Difficult Differentiation! Help please!Hi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #13 20121125 01:24:16
Re: Really Difficult Differentiation! Help please!
Thanks. I have tried for days to work this out but I still do not understand this at all. Also, the P^2 on the bottom is inconsistent with the answer from the book. We want to differentiate only with respect to the Pi, not with respect to the 'P' on the bottom....this is completely different to the answer? Now I have two things I don't understand #14 20121125 01:57:14
Re: Really Difficult Differentiation! Help please!Hi; For the next term let's simplify it a bit before differentiating Is that clear to start? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #15 20121125 03:47:49
Re: Really Difficult Differentiation! Help please!
Yes! Thank you! That all makes sense, except for the last line, I don't know where the divided 'P' has gone? #16 20121125 03:50:10
Re: Really Difficult Differentiation! Help please!Basically I understand that Pi^n bit, but not how ((Pi/P)^n) / P gives P^ n1? #17 20121125 09:23:19
Re: Really Difficult Differentiation! Help please!Hi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #18 20121126 02:51:23
Re: Really Difficult Differentiation! Help please!
Ok I know we haven't even started differentiating and I can't do this. #19 20121126 02:52:33
Re: Really Difficult Differentiation! Help please!Can someone just please explain why (Pi/P)^n / P gives P^1n... please someone? #20 20121126 02:53:31
Re: Really Difficult Differentiation! Help please!EDIT ^^ why it gives P^n1..please someone this isn't even the question I wanted to solve in the first place and now I am stuck just simplifying things #21 20121126 02:56:49
Re: Really Difficult Differentiation! Help please!Hi;
Simplifying is supposed to make things easier, it is part of math. Without it some problems are impossible.
Pardon me for saying but you come in for 30 seconds and then I do not see you for 2 days. 5 x 30 seconds is 2 and half minutes of time spent on this problem. I could not solve it that quickly either. In order to get something out of this you have to spend the time in here with me, asking questions. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #22 20121127 02:38:10
Re: Really Difficult Differentiation! Help please!
Ok. Thank you for your reply. That is a very helpful breakdown and it makes sense. I have been trying a lot but just keep getting nowhere so come back to ask questions. Sorry. #23 20121127 08:44:26
Re: Really Difficult Differentiation! Help please!Hi; Do you now see how this was done? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #24 20121127 08:48:08
Re: Really Difficult Differentiation! Help please!
Yes bobbym I fully understand this now! Thank you! #25 20121127 08:50:13
Re: Really Difficult Differentiation! Help please!Hi; It is just a power rule. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 