%	equation.s
%
%	Purpose:	Equation handling
%	Copyright:	R.A. van Engelen, Leiden University, 1997

include declare.

system is external(module = equation, result = nil).
end_system is external(module = equation, result = nil).
infix = is external(module = equation, result = nil).
infix on is external(module = equation, result = nil).

%       Syntax:         LHS = RHS
%       Example:        [u, v] = grad p.