August 10th, 2010, 08:59 AM  #1 
Newbie Joined: Sep 2008 Posts: 6 Thanks: 0  Equilibrium
I have got a continuous and ntimes differentiable function f(s) defined on the interval (0,1/2) in which f(1/2)=0. f(0) and f’(1/2), which depend on the parameters’ sign, might be either sign, whilst f’’(1/2)=0. Questions: Is there any way to know if the function displays other zeros in the specified interval? If yes, is there any way to know how many those zeros are? Thanks to everybody. Best Regards, Francesco 
August 24th, 2010, 05:09 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,502 Thanks: 1739 
What does "depend on the parameters’ sign" mean, and what does "might be either sign" mean?


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