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linalg(deprecated)

  

multiply

  

matrix-matrix or matrix-vector multiplication

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

multiply(A, B, ... )

Parameters

A, B, ...

-

matrices

Description

• 

Important: The linalg package has been deprecated. Use the superseding commands, LinearAlgebra[MatrixMatrixMultiply] and LinearAlgebra[MatrixVectorMultiply], instead.

  

- For information on migrating linalg code to the new packages, see examples/LinearAlgebraMigration.

• 

The function multiply(A, B,...) calculates the matrix product A B ... .  The dimensions of each matrix must be consistent with the rules of matrix multiplication.

• 

The call multiply(A, v), for a matrix A and vector v, calculates the matrix-vector product A v. The number of entries in v must be equal to the number of columns of A. Thus if A is an n x m matrix, vectdim(v) must be m. The result is a vector with n entries.

• 

The evalm command provides an easy method of accessing multiply.

• 

The command with(linalg,multiply) allows the use of the abbreviated form of this command.

Examples

Important: The linalg package has been deprecated. Use the superseding commands, LinearAlgebra[MatrixMatrixMultiply] and LinearAlgebra[MatrixVectorMultiply], instead.

withlinalg:

Aarray1,2,3,4:

Barray0,1,1,0:

Carray1,2,4,5:

multiplyA,B,C

691623

(1)

v34:

multiplyA,v

1125

(2)

multiplyv,transposev

9121216

(3)

See Also

linalg(deprecated)[innerprod]

LinearAlgebra