My Math Forum  

Go Back   My Math Forum > College Math Forum > Differential Equations

Differential Equations Ordinary and Partial Differential Equations Math Forum


Reply
 
LinkBack Thread Tools Display Modes
August 30th, 2010, 08:08 AM   #11
Senior Member
 
MarkFL's Avatar
 
Joined: Jul 2010
From: St. Augustine, FL., U.S.A.'s oldest city

Posts: 12,211
Thanks: 521

Math Focus: Calculus/ODEs
Re: Help working out this differential equation...

Whenever you find an indefinite integral it is proper to add a constant, as the derivative of a constant is zero. For example

?(u)du = Żu▓ + C

since

d(Żu▓ + C)/du = u + 0 = u

If you'll notice in skipjack's post, the constants A and B were the so-called constants of integration. It might seem a trivial matter, but could lose you points on an exam.
MarkFL is offline  
 
August 30th, 2010, 08:32 AM   #12
Newbie
 
Joined: Aug 2010

Posts: 13
Thanks: 0

Re: Help working out this differential equation...

Quote:
Originally Posted by MarkFL
Whenever you find an indefinite integral it is proper to add a constant, as the derivative of a constant is zero. For example

?(u)du = Żu▓ + C

since

d(Żu▓ + C)/du = u + 0 = u

If you'll notice in skipjack's post, the constants A and B were the so-called constants of integration. It might seem a trivial matter, but could lose you points on an exam.
Okay, thank you. I'll keep that in mind.
Britmouth is offline  
Reply

  My Math Forum > College Math Forum > Differential Equations

Tags
differential, equation, working



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Differential equation JulieK Differential Equations 4 November 30th, 2013 06:26 AM
Show that an equation satisfies a differential equation PhizKid Differential Equations 0 February 24th, 2013 10:30 AM
help me, differential equation casey13 Differential Equations 8 May 30th, 2012 12:13 PM
differential equation tomislav91 Differential Equations 1 May 30th, 2012 07:28 AM
differential equation working fran1942 Differential Equations 2 May 20th, 2012 05:23 PM





Copyright © 2019 My Math Forum. All rights reserved.