Matl Command

Operates on the vector field quantity in the top register of the Fields Calculator based on a material property. At each tetrahedron, the field quantity is operated on by the value of the selected material property — taking the different material attributes of each object into account.

To operate on a vector quantity by a material property:

1. Click Matl.

   The Material Operation window appears.

2. Select a material property. Available properties are
   .

   Permittivity (epsi)	The permittivity, e.
   Permeability (mu)	The permeability, m. Defined as m0mr where m0 is the permeability of free space.
   Conductivity	The conductivity, s.
   Omega (w)	The angular frequency, w. The angular frequency is equal to 2pf, where f is the frequency at which the solution was generated.
   MassDensity	This is based on the value of the Mass Density material property. MassDensity is treated like a named expression. Selecting MassDensity disables the Operation radio buttons for Multiply or Divide in the Material Operations dialog box.

   
   
3. For Permittivity, Permeability, Conductivity or Omega, select an operation — Multiply or Divide. Selecting MassDensity disables these operations. The MassDensity scalar can be used like any other named expression.
4. Choose OK to operate on the field quantity by a material property or Cancel to stop the operation. If you selected MassDensity and click OK, a scalar named expression MassDensity is pushed onto the stack.