By analogy with the sinc function, define the sinhc function by sinhc(z) congruent {(sinh z)/z | for z!=0 1 | for z = 0. auto right match Since sinh x/x is not a cardinal function, the "analogy" with the sinc function is one of functional structure, not mathematical properties. It is quite possible that a better term than sinhc(x) could be coined, although there appears to be no other name previously assigned to this function.

Shi | sinc function | tanc function