mom_intrinsic_functions real function, public real function, public mom_intrinsic_functions::invcosh (x) invcosh x x Evaluate the inverse cosh, either using a math library or an equivalent expression. x The argument of the inverse of cosh. NaNs will occur if x<1, but there is no error checking mom_bkgnd_mixing::calculate_bkgnd_mixing A module with intrinsic functions that are used by MOM but are not supported by some compilers.