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Dec 17th, 2017
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  1. FindRoot[Cosh[1/x] - Sinh[1/x]/x^2, {x, .1}] (* with startvalue *)
  2. (* {x -> 0.897517} *)
  3.  
  4. NMinimize[{1, Cosh[1/x] - Sinh[1/x]/x^2 == 0}, x] (* without startvalue *)
  5. (* {1., {x -> 0.897517}} *)
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