Matrix-Matrix Product¶
- class fastmat.Product¶
Bases:
Matrix
\[M = \prod\limits_i A_i\]where the \(A_{i}\) can be fast transforms of *any* type.
>>> # import the package >>> import fastmat as fm >>> >>> # define the product terms >>> A = fm.Circulant(x_A) >>> B = fm.Circulant(x_B) >>> >>> # construct the product >>> M = fm.Product(A.H, B)
Assume we have two circulant matrices \(A\) and \(B\). Then we define
\[M = A_c^\mathrm{H} B_c.\]- __init__()¶
Initialize a Product matrix instance.
- Parameters
- *matrices
fastmat.Matrix
or scalar value The matrix instances to form a matrix-matrix product of. You may also specify scalar values.
- typeExpansionbool, optional
Expand the data type of input data to the data type specified with this paramter.
Defaults to a floating-point expansion of the promoted type of all nested matrices’ (and scalar values’) data types.
- **optionsoptional
Additional optional keyworded arguments. Supports all optional arguments supported by
fastmat.Matrix
.
- *matrices