Provided by: librheolef-dev_6.6-1build2_amd64

**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)); Thecomposeoperator could be used in all non-linear expressions involved in either theinterpolateor theintegratefunctions (see interpolate(4) and integrate(4)). Theffunction could be either a usual function or a functor.

**CHARACTERISTIC**

Thecomposefunction 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)