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Has this problem one symbolic solution?

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Has this problem one symbolic solution?

We have tried to solve this problem.

Let do it one more - help me please to find not numeric (see please the picture and the Mathcad 15 sheet in attach) but symbolic value of this constant! As any closed (implicit) formula - as here

L-Opt.png

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Accepted Solutions

Re: Has this problem one symbolic solution?

From your integral for L we have that a*sinh(X/a) = L/2 ...(1)

 

If X is known and L is specified as a multiple of X then the only unknown is ‘a’.  Unfortunately, there is no known analytical solution to (1) that I’m aware of (certainly not in terms of elementary functions), which means that any attempt to find a symbolic expression for your catenary constant is doomed to failure! 

 

Alan

3 REPLIES 3

Re: Has this problem one symbolic solution?

From your integral for L we have that a*sinh(X/a) = L/2 ...(1)

 

If X is known and L is specified as a multiple of X then the only unknown is ‘a’.  Unfortunately, there is no known analytical solution to (1) that I’m aware of (certainly not in terms of elementary functions), which means that any attempt to find a symbolic expression for your catenary constant is doomed to failure! 

 

Alan

Re: Has this problem one symbolic solution?

got to learn to read better.  Could not delete post.

 

More coffee!

Re: Has this problem one symbolic solution?


@FredKohlhepp wrote:

got to learn to read better.  Could not delete post.

 

More coffee!


Sorry!

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