The 2-norm is defined for the Vector and Matrix concepts. The value_type must be a model of the Field concept, so that we have vector spaces.
For a Vector the 2-norm is defined as
For a Matrix the 2-norm is defined as
Parameter | Description | Default |
V | VectorSpace type |
Member | Where defined | Comment |
real_type | BanachSpace | |
norm() | BanachSpace | Returns the 2-norm. |