
Calculus Calculus Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 29th, 2012, 08:35 AM  #1 
Newbie Joined: Oct 2008 Posts: 4 Thanks: 0  Interpretating partial derivatives of a function of two vari
Hi there I have this function, which is the function for determining the body mass index (BMI): Then I have to determine these two values: And then I have to interpret these values, and I guess C is how much B changes when you go along the maxis (which in this case is the xaxis). But is there a like more tangible meaning to this value? It seems like it, but I am just not able to spot it :/ 
October 29th, 2012, 12:51 PM  #2  
Math Team Joined: Sep 2007 Posts: 2,409 Thanks: 6  Re: Interpretating partial derivatives of a function of two Quote:
 
October 29th, 2012, 02:15 PM  #3 
Newbie Joined: Oct 2008 Posts: 4 Thanks: 0  Re: Interpretating partial derivatives of a function of two
m is weight in kilograms and h is height in meters. So the change in m, does not depend on m itself, it rather depends on h? 
October 29th, 2012, 02:23 PM  #4 
Math Team Joined: Sep 2007 Posts: 2,409 Thanks: 6  Re: Interpretating partial derivatives of a function of two
Yes, that is correct: If we write then so that B is a linear function of m with slope so that if m changes by some amount, then B changes by time the change in m, not m itself.


Tags 
derivatives, function, interpretating, partial, vari 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
continuity and partial derivatives of a function  robinhg  Real Analysis  1  February 21st, 2014 02:11 PM 
Are partial derivatives the same as implicit derivatives?  johngalt47  Calculus  2  November 23rd, 2013 12:44 PM 
Partial Derivatives  aaronmath  Calculus  1  March 4th, 2012 01:28 PM 
partial derivatives  remeday86  Calculus  3  March 28th, 2009 07:50 AM 
using partial derivatives  tbdevilrays  Calculus  4  July 13th, 2008 09:34 AM 