# UniversalSpace¶

class `odl.set.space.``UniversalSpace`[source]

A dummy linear space class.

Mostly raising `LinearSpaceNotImplementedError`.

Attributes
`element_type`

Type of elements of this space (`LinearSpaceElement`).

`examples`

Example elements `zero` and `one` (if available).

`field`

Scalar field of numbers for this vector space.

Methods

 `_dist`(self, x1, x2) Dummy distance method. `_divide`(self, x1, x2, out) Dummy division method. `_inner`(self, x1, x2) Dummy inner product method. `_lincomb`(self, a, x1, b, x2, out) Dummy linear combination. `_multiply`(self, x1, x2, out) Dummy multiplication method. `_norm`(self, x) Dummy norm method. `contains_all`(self, other) Test if all elements in `other` are contained in this set. `contains_set`(self, other) Test if `other` is a subset of this set. `dist`(self, x1, x2) Return the distance between `x1` and `x2`. `divide`(self, x1, x2[, out]) Return the pointwise quotient of `x1` and `x2` `element`(self[, inp]) Dummy element creation method. `inner`(self, x1, x2) Return the inner product of `x1` and `x2`. `lincomb`(self, a, x1[, b, x2, out]) Implement `out[:] = a * x1 + b * x2`. `multiply`(self, x1, x2[, out]) Return the pointwise product of `x1` and `x2`. `norm`(self, x) Return the norm of `x`. `one`(self) Return the one (multiplicative unit) element of this space. `zero`(self) Return the zero (additive unit) element of this space.
`__init__`(self)[source]

Initialize a new instance.