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- where z is any real number
- This function gives the hyperbolic Cotangent of 'z'.
- It's also called as Circular function.
- COTH is the reciprocal of TANH function.
- i.e or Icot(iz).where 'I' is the imginary unit and i=sqrt(-1).
- Also relation between Hyperbolic & Trignometric function is
- cot(iz)=-icothz&coth(iz)=-icot z
- z is any real number.