Symmetry

In order to conserve memory, only the right half of the structure is computed. The left half is assumed to be the same as the right half.

If SYMMETRIC is selected, the reflection about the x = 0 axis is made such that only the even order modes are calculated, ie., those which have a symmetric distribution about the x = 0 axis.

If ANTI-SYMMETRIC is selected, the reflection about the x = 0 axis is made such that only the odd order modes are calculated, ie., those which have an anti-symmetric distribution about the x = 0 axis.