Thread: Problem 24
View Single Post
  #14  
Old May 31st, 2007, 02:38 AM
CaptainBlack's Avatar
CaptainBlack CaptainBlack is offline
Grand Panjandrum
  
Join Date: Nov 2005
Location: South of England
Posts: 11,379
Country:
Thanks: 667
Thanked 3,619 Times in 2,916 Posts
CaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond reputeCaptainBlack has a reputation beyond repute
Default
Quote:
Originally Posted by JakeD View Post
Then A = 0. So ecMathGeeks proposed solution does not satisfy the integral equation for any A, which the second post seems to imply, only when f(x) = Ae^x = 0. Is that what is going on here?
The integral equation when converted to a diffrential equation is in fact
an initial value problem as of necessity f(0)=0

ecMathGeek gave a general solution to the DE that you get by differentiating
the integral equation but omitted the initial condition that forces A=0.

RonL
__________________
Truth does not change because it is, or is not, believed by a majority of the people.

Giordano Bruno
The following users thank CaptainBlack for this useful post:
Donate to MHF