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Student Support Forum: 'Finding roots to specified accuracy' topicStudent Support Forum > General > "Finding roots to specified accuracy"

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Jonathan Elliott
09/22/05 06:29am

I'm new to Mathematica and I've only been using it for about a week.

How can I find the roots of equations like Cosh[x]= x^2 to anything more than the default accuracy? If I type FindRoot[Cosh[x]==x^2,{x,1}] I just get {x->1.62135}. Is there anything I can add to get a numerical approximation to, say, 20 digits?

Thanks.

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Subject (listing for 'Finding roots to specified accuracy')
Author Date Posted
Finding roots to specified accuracy Jonathan Ell... 09/22/05 06:29am
Re: Finding roots to specified accuracy yehuda ben-s... 09/23/05 02:51am
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