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How to solve Sinh and Cosh functions summation over 0 to infinity

Posted 1 year ago

Dear All,

I am trying to calculate a non linear equation which consists of hyperbolic functions Sinh and Cosh. I would like to calculate the numerical value summation over 0 to infinity. by numerical minimization using Nminimize function.

The notebook is attached here.

When I am trying to minimise the function with respect to lambdaHybm, The calcultion does not work. However if I put some specific value (10, 100, 9999) insted of Infinite in equation, It gives some value. But, The value are different for different range of summation.

How I can calculate from 0 to Infinite? Could you please give some suggestions.

Thanks, Best Regards, Sukanta

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