November 13th, 2017, 06:31 AM  #1 
Senior Member Joined: Nov 2011 Posts: 110 Thanks: 1  dy/dx
what is dx/dy when d is written in strange font?

November 13th, 2017, 06:58 AM  #2 
Member Joined: Oct 2016 From: Slovenia, Europe Posts: 52 Thanks: 5 
I think that you mean the partial derivative symbol. https://en.wikipedia.org/wiki/Partial_derivative 
November 13th, 2017, 07:01 AM  #3 
Senior Member Joined: Nov 2011 Posts: 110 Thanks: 1 
thank. There is connection to Implicit function?! 
November 13th, 2017, 07:09 AM  #4 
Member Joined: Oct 2016 From: Slovenia, Europe Posts: 52 Thanks: 5 
I advise you to learn as much as you can about partial derivatives which are used with functions of several variables before you start dealing with the implicit functions. If you have any specific problems, write them below, because we do not know what bothers you.

November 13th, 2017, 07:12 AM  #5 
Senior Member Joined: Nov 2011 Posts: 110 Thanks: 1 
No thanks. I don't have any exercise; can you give me an example exercise that combines the implicit function and derivative ("function"?!)...
Last edited by skipjack; November 13th, 2017 at 07:19 AM. 
November 13th, 2017, 07:29 AM  #6 
Senior Member Joined: Nov 2011 Posts: 110 Thanks: 1 
I have a nice hard question. The question is to prove that the function http://img2.timg.co.il/forums/45/128...24fe356328.png is impilicit function. I have the solution too. But try to answer it. 
November 13th, 2017, 07:37 AM  #7 
Member Joined: Oct 2016 From: Slovenia, Europe Posts: 52 Thanks: 5 
I do not instantly know how to prove it and today I do not have enough time to find it out. Google is your friend. I am not a fan of proofs. I prefer physics 
November 13th, 2017, 07:42 AM  #8 
Senior Member Joined: Nov 2011 Posts: 110 Thanks: 1 
O.K. The problem have a long solution. Thanks for answering me. 
November 13th, 2017, 09:24 AM  #9 
Math Team Joined: May 2013 From: The Astral plane Posts: 1,659 Thanks: 652 Math Focus: Wibbly wobbly timeywimey stuff.  
November 13th, 2017, 10:59 AM  #10 
Math Team Joined: Jan 2015 From: Alabama Posts: 2,821 Thanks: 750 
I would start by stating the definition of "implicit function".


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