# Matrix-Matrix Product (General) (G Dataflow)

Last Modified: January 12, 2018

Calculates the product of two general matrices. ## operation B

Operation this node performs on B.

Name Value Description
Direct 0 op(B) = B
Conjugated and Transposed 1 op(B) = conjugate transpose of B
Transposed 2 op(B) = transpose of B

Default: Direct ## operation A

Operation this node performs on A.

Name Value Description
Direct 0 op(A) = A
Conjugated and Transposed 1 op(A) = conjugate transpose of A
Transposed 2 op(A) = transpose of A

Default: Direct ## A

Matrix such that op(A) is an M × K matrix.

This input accepts the following data types:

• 2D array of double-precision, floating-point numbers
• 2D array of complex double-precision, floating-point numbers ## B

Matrix such that op(B) is a K × N matrix.

This input accepts the following data types:

• 2D array of double-precision, floating-point numbers
• 2D array of complex double-precision, floating-point numbers ## C

Matrix whose dimensions are greater than or equal to M × N. If C is an empty matrix, this node initializes C to be an M × N matrix with all elements set to 0.

This input accepts the following data types:

• 2D array of double-precision, floating-point numbers
• 2D array of complex double-precision, floating-point numbers ## error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error ## alpha

Scalar that scales op(A) * op(B).

This input accepts the following data types:

• Double-precision, floating-point numbers
• Complex double-precision, floating-point numbers

Default: The default value is 1 if alpha is a double-precision, floating-point number. The default value is 1+0i if alpha is a complex double-precision, floating-point number. ## beta

Scalar that scales C.

This input accepts the following data types:

• Double-precision, floating-point number
• Complex double-precision, floating-point numbers

Default: The default value is 1 if beta is a double-precision, floating-point number. The default value is 1+0i if beta is a complex double-precision, floating-point number. ## dgemm

Matrix of the same dimensions as C.

For elements of the first M rows and N columns, dgemm returns the result of alpha * op(A) * op(B) + beta * C. For any remaining elements, dgemm returns the value of the element in C with the same index.

This output is available only if you wire a 2D array of double-precision, floating-point numbers to A, B, or C. ## zgemm

Matrix of the same dimensions as C.

For elements of the first M rows and N columns, zgemm returns the result of alpha * op(A) * op(B) + beta * C. For any remaining elements, zgemm returns the value of the element in C with the same index.

This output is available only if you wire a 2D array of complex double-precision, floating-point numbers to A, B, or C. ## error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application
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