HFSS15: The Calculator Stack

The calculator is made up of a stack of registers. Registers are displayed in the register display area at the center of the calculator window. Each register can hold:

• Field quantities such as the H-field or E-field.

• Functional or constant scalars and vectors.

• Geometries — points, lines, surfaces, or volumes — on which a field quantity is to be evaluated.

To perform a computation on the field solution, you must first load a basic field quantity into a register on the stack. Once a quantity is loaded into a register, it can be:

• Manipulated using mathematical operations such as curls, gradients, cross products, divergences, and dot products.

• Integrated over lines, surfaces, or subvolumes of the solution region — either predefined surfaces, volumes, and lists, or lines, surfaces, and volumes that were defined using the Draw commands.

• Exported to a file, allowing you to superimpose saved solutions.