PEP 465 – A dedicated infix operator for matrix multiplication¶
Abstract¶
This PEP proposes a new binary operator to be used for matrix multiplication, called @. (Mnemonic: @ is * for mATrices.)
Specification¶
A new binary operator is added to the Python language, together with the corresponding in-place version:
Op |
Precedence/associativity |
Methods |
|---|---|---|
@ |
Same as * |
__matmul__, __rmatmul__ |
@= |
n/a |
__imatmul__ |
No implementations of these methods are added to the builtin or standard library types. However, a number of projects have reached consensus on the recommended semantics for these operations; see Intended usage details below for details.
For details on how this operator will be implemented in CPython, see Implementation details.
Reference