Elementary Operators

• Arithmetic operators are:

• Cartesian coordinates with uniform mesh sizes are defined by

  Coordinate<WE_dir,Grid_uniform_one_d> X(grid);
  Coordinate<SN_dir,Grid_uniform_one_d> Y(grid);
  Coordinate<DT_dir,Grid_uniform_one_d> Z(grid);

• Cartesian coordinates with moving mesh sizes are defined by

  Example 1:

  Grid_move_one_d oneDgrid(3.0,4.0,100,1);
  oneDgrid.set_coordinate(1, 3.3, 2);

Coordinate<WE_dir,Grid_move_one_d> X(grid,oneDgrid);
Coordinate<SN_dir,Grid_move_one_d> Y(grid,oneDgrid);
Coordinate<DT_dir,Grid_move_one_d> Z(grid,oneDgrid);

Here oneDgrid is a one-dimensional grid from 3 to 4 with 100 grid points and a 2 level refinement at the grid point 3.3.

Example 2:

Grid_move_one_d oneDgrid(3.0,4.0,1);
oneDgrid.set_coordinate(1, 3.3, 0);
oneDgrid.set_meshsizes(0, 0.1);
oneDgrid.set_meshsizes(1, 0.2);

Coordinate<WE_dir,Grid_move_one_d> X(grid,oneDgrid);
Coordinate<SN_dir,Grid_move_one_d> Y(grid,oneDgrid);
Coordinate<DT_dir,Grid_move_one_d> Z(grid,oneDgrid);

Here oneDgrid is a one-dimensional grid from 3 to 4 with local meshsizes 0.1 and 0.2 left and right from the grid point at 3.3.

• Scalar product: not implemented up to now.

Last modified: Tue Feb 8 10:34:20 MET 2000