Solving Implicit Function of Catenary in Mathematica

In summary, to solve the implicit function of a catenary in Mathematica, you can use the built-in function ImplicitRegion. This function takes in the equation of the catenary curve and the variable you want to solve for as inputs and returns a region object that represents the solution. You can then use the Solve or NSolve functions to find the specific values for the variable. Additionally, you can plot the catenary curve using the ContourPlot function and the accuracy of the solutions obtained using Mathematica depends on the accuracy of the input equation and the numerical methods used. Mathematica can also handle implicit functions with multiple variables and there are alternative methods for solving the implicit function of a catenary, but Mathematica is often preferred for its accuracy
  • #1
Nusc
760
2
I need to solve this implicit function of the catenary

k=cosh(k/sqrt(k^2-1))

how do i Do this in mathematica?
 
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  • #2
FindRoot[k==Cosh[k/Sqrt[k^2-1]], {k,guess}]
Where guess is a guess of the answer.
 
  • #3
If you do a :
Plot[{k, Cosh[k/Sqrt[(k^2 - 1)]]}, {k, 0, 4}]

You can get an approximate guess to use lurflurf's suggestion, for the two roots.
FindRoot[Cosh[k/Sqrt[k^2 - 1]] - k, {k, 0.6}]
FindRoot[Cosh[k/Sqrt[k^2 - 1]] - k, {k, 2}]
 

1. How can I use Mathematica to solve the implicit function of a catenary curve?

To solve the implicit function of a catenary in Mathematica, you can use the built-in function ImplicitRegion. This function takes in the equation of the catenary curve and the variable you want to solve for as inputs and returns a region object that represents the solution. You can then use the Solve or NSolve functions to find the specific values for the variable.

2. Can I plot the catenary curve using the implicit function in Mathematica?

Yes, you can plot the catenary curve using the ContourPlot function in Mathematica. This function takes in the equation of the catenary curve and the range of values for the variable you want to solve for as inputs. It will then plot the curve in the specified range.

3. How accurate are the solutions obtained using Mathematica for the implicit function of a catenary?

The accuracy of the solutions obtained using Mathematica for the implicit function of a catenary depends on the accuracy of the input equation and the numerical methods used by the software. In general, Mathematica is known for its high accuracy in solving mathematical problems, so the solutions obtained should be reliable.

4. Can I solve the implicit function for a catenary with multiple variables using Mathematica?

Yes, Mathematica can handle implicit functions with multiple variables. You can use the ImplicitRegion function to specify the equation with multiple variables and the Solve or NSolve functions to find the solutions.

5. Are there any alternative methods for solving the implicit function of a catenary other than using Mathematica?

Yes, there are alternative methods for solving the implicit function of a catenary, such as using numerical methods or other mathematical software. However, Mathematica is a powerful and versatile tool for solving mathematical problems and is often preferred by scientists and researchers for its accuracy and efficiency.

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