Last Modified: June 25, 2019
Calculates the product of a general matrix and a vector.
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) has dimensions
N
×
M.
This input accepts the following data types:

2D array of doubleprecision, floatingpoint numbers

2D array of complex doubleprecision, floatingpoint numbers
x
Input vector.
x
must have at least
M
elements, where
M
equals the number of columns in op(A). This node multiplies the first
M
elements in
x
by op(A).
This input accepts the following data types:

1D array of doubleprecision, floatingpoint numbers

1D array of complex doubleprecision, floatingpoint numbers
y
Input vector.
y
must have at least
N
elements. If
y
is an empty vector, this node initializes
y
to be an
Nelement vector with all elements set to 0.
This input accepts the following data types:

1D array of doubleprecision, floatingpoint numbers

1D array of complex doubleprecision, floatingpoint numbers
error in
Error conditions that occur before this node runs.
The node responds to this input according to 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) *
x.
This input accepts the following data types:

Doubleprecision, floatingpoint numbers

Complex doubleprecision, floatingpoint numbers
Default:
The default value is 1 if
alpha
is a doubleprecision, floatingpoint number. The default value is 1+0i if
alpha
is a complex doubleprecision, floatingpoint number.
beta
Scalar that scales
y.
This input accepts the following data types:

Doubleprecision, floatingpoint numbers

Complex doubleprecision, floatingpoint numbers
Default:
The default value is 1 if
beta
is a doubleprecision, floatingpoint number. The default value is 1+0i if
beta
is a complex doubleprecision, floatingpoint number.
dgemv
Vector of the same size as
y.
For the first
N
elements, this input returns the result of
alpha
* op(A) *
x
+
beta
*
y. For any remaining elements, this input returns the value of the element in
y
with the same index.
This output is available when you wire a 1D array of doubleprecision, floatingpoint numbers to
x
or
y, or a 2D array of doubleprecision, floatingpoint numbers to
A.
zgemv
Vector of the same size as
y.
For the first
N
elements, this input returns the result of
alpha
* op(A) *
x
+
beta
*
y. For any remaining elements, this input returns the value of the element in
y
with the same index.
This output is available when you wire a 1D array of complex doubleprecision, floatingpoint numbers to
x
or
y, or a 2D array of complex doubleprecision, floatingpoint numbers to
A.
error out
Error information.
The node produces this output according to 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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