Determine if matrix is symmetric or skew-symmetric

`tf = issymmetric(A)`

`tf = issymmetric(A,skewOption)`

`tf = issymmetric(`

specifies
the type of the test. Specify `A`

,`skewOption`

)`skewOption`

as `'skew'`

to
determine if `A`

is skew-symmetric.

`ctranspose`

| `ishermitian`

| `isreal`

| `transpose`