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From: nobert gerome on 31 Dec 2009 07:57
I want to solve the same equation, but give me back 0, i don't understand why? somebody can explain to me my error???



"Faisal Siddiqui" <aeroengg(a)gmail.com> wrote in message <h3qqha$i91$1(a)fred.mathworks.com>...
> "Matt Fig" <spamanon(a)yahoo.com> wrote in message <h3qnol$f6g$1(a)fred.mathworks.com>...
> > f = @(x) cos(x) * cosh(x) + 1;
> > fzero(f,2)
> > ans =
> > 1.8751
>
> Can you please explain this a bit more, I am new to Matlab.
>
> Thanks a lot for your help
From: nobert gerome on 31 Dec 2009 07:58
I want to solve the same equation, but give me back 0, i don't understand why? somebody can explain to me my error???



"Faisal Siddiqui" <aeroengg(a)gmail.com> wrote in message <h3qqha$i91$1(a)fred.mathworks.com>...
> "Matt Fig" <spamanon(a)yahoo.com> wrote in message <h3qnol$f6g$1(a)fred.mathworks.com>...
> > f = @(x) cos(x) * cosh(x) + 1;
> > fzero(f,2)
> > ans =
> > 1.8751
>
> Can you please explain this a bit more, I am new to Matlab.
>
> Thanks a lot for your help
From: Greg Heath on 2 Jan 2010 14:17
On Dec 31 2009, 7:58 am, "nobert gerome" <kiki_jesp...(a)yahoo.fr>
wrote:
> I want to solve the same equation, but give me back 0, i don't understand why? somebody can explain to me my error???

>> solve('cos(x)*cosh(x)+1')
solve('cos(x)*cosh(x)+1','x')
x = solve('cos(x)*cosh(x)+1')
x = solve('cos(x)*cosh(x)+1','x')
ans =
1.8751040687119611664453082410782*i
ans =
1.8751040687119611664453082410782*i
x =
1.8751040687119611664453082410782*i
x =
1.8751040687119611664453082410782*i

Hope this helps.

Greg
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