*The relation between Hyperbolic & Trigonometric function is <math>Csc(iz) = -iCsch(z)</math> & <math>Csch(iz)=-iCsc(z)</math> | *The relation between Hyperbolic & Trigonometric function is <math>Csc(iz) = -iCsch(z)</math> & <math>Csch(iz)=-iCsc(z)</math> |