bionic (4) compose.4rheolef.gz

NAME

       compose - a n-ary function with n fields

DESCRIPTION

       Compose a n-ary function f with n fields.

               geo omega ("circle");
               space Xh (omega, "P1");
               field uh (Xh, 1.0);
               field vh = interpolate (compose(f,uh));

       The  compose  operator  could be used in all non-linear expressions involved in either the interpolate or
       the integrate functions (see interpolate(4) and integrate(4)).  The f function could be  either  a  usual
       function or a functor.

CHARACTERISTIC

       The  compose  function  supports  also  the  characteristic  algorithm  (see  characteristic(2)) used for
       convection.

               characteristic X (-delta_t*uh);
               test v (Xh);
               field lh = integrate (compose(uh,X)*v);

IMPLEMENTATION

       The n-arity bases on the variadic template feature of the 2011 c++ normalisation.  When this  feature  is
       not available, only unary and binary functions are supported.

SEE ALSO

       interpolate(4), integrate(4), characteristic(2)