coordinates.coordinate_systems.CartesianCoordinateSystem3D.get_class_expression

classmethod CartesianCoordinateSystem3D.get_class_expression(expression_name: str) → Symbol | Expr | MutableDenseMatrix | MutableDenseNDimArray | ImmutableDenseMatrix | ImmutableDenseNDimArray

Retrieve a derived expression for this coordinate system by name. The returned expression will include symbolic representations for all the axes as well as the parameters.

Parameters:

expression_name (str) – The name of the symbolic expression to retrieve.

Return type:

The requested symbolic expression.

Raises:

KeyError – If the requested expression name does not exist.