Example 1.
Define a 4-dimensional manifold with coordinates , where and are real coordinates, andare complex coordinates and the complex conjugate of is
Calculate the complex conjugate of some vectors on .
Calculate the complex conjugate of a vector depending upon parameters and . First assume and are real.
Now suppose that is complex and that the complex conjugate of is .
Calculate the complex conjugate of a rank 2 tensor:
Calculate the complex conjugate of a rank 4 differential form
Example 2.
Calculate the real and imaginary parts of the vectors, tensors and differential forms defined in Example 1.
Example 3.
The command DGconjugate works with anholonomic frames. To check this, first define an anholonomic frame and initialize it..
Example 4.
Find the conjugate of a quaternion. First use the command AlgebraData to obtain the structure equations for the quaternions.
The labels for the vectors and dual 1-forms can be specified upon initialization of the algebra. We will use the standard for the quaternion basis vectors, and for the dual 1-forms.
Define a quaternion.
Example 5.
Find the conjugate of an octonian. Use the command AlgebraData to obtain the structure equations for the octonions.
Define an octonion.