ProductSpace.element¶

ProductSpace.element(inp=None, cast=True)[source]¶

Create an element in the product space.

Parameters:

inpoptional: If inp is None, a new element is created from scratch by allocation in the spaces. If inp is already an element of this space, it is re-wrapped. Otherwise, a new element is created from the components by calling the element() methods in the component spaces.
castbool, optional: If True, casting is allowed. Otherwise, a TypeError is raised for input that is not a sequence of elements of the spaces that make up this product space.

Returns:

elementProductSpaceElement: The new element

Examples

>>> r2, r3 = odl.rn(2), odl.rn(3)
>>> vec_2, vec_3 = r2.element(), r3.element()
>>> r2x3 = ProductSpace(r2, r3)
>>> vec_2x3 = r2x3.element()
>>> vec_2.space == vec_2x3[0].space
True
>>> vec_3.space == vec_2x3[1].space
True

Create an element of the product space

>>> r2, r3 = odl.rn(2), odl.rn(3)
>>> prod = ProductSpace(r2, r3)
>>> x2 = r2.element([1, 2])
>>> x3 = r3.element([1, 2, 3])
>>> x = prod.element([x2, x3])
>>> x
ProductSpace(rn(2), rn(3)).element([
    [ 1.,  2.],
    [ 1.,  2.,  3.]
])