text: #ifndef __SCHEME_FUNS_COMPLEXFUN
  #define __SCHEME_FUNS_COMPLEXFUN
  #include "arch.hpp"
  #include "ast.hpp"
  #include "parsers.hpp"
  namespace HT
  {
      void magnitude(PASTNode, ParsersHelper&);
      void angle(PASTNode, ParsersHelper&);
  }
  #endif
  