Computes the dot product of two vectors.
A Boolean that specifies whether to reset the internal state of the node.
True | Resets the internal state of the node. |
False | Does not reset the internal state of the node. |
This input is available only if you wire a double-precision, floating-point number or a complex double-precision, floating-point number to vector x or vector y.
Default: False
First input vector.
This input accepts the following data types:
When vector x is a 1D array of double-precision, floating-point numbers or a 1D array of complex double-precision, floating-point numbers, the number of elements in the first input vector must be greater than 0 and equal to the number of elements in the second input vector. Otherwise, the dot product is undefined, and the node returns NaN.
Second input vector.
This input accepts the following data types:
When vector y is a 1D array of double-precision, floating-point numbers or a 1D array of complex double-precision, floating-point numbers, the number of elements in the first input vector must be greater than 0 and equal to the number of elements in the second input vector. Otherwise, the dot product is undefined, and the node returns NaN.
Length of each set of data. The node performs computation for each set of data.
This input is available only if you wire a double-precision, floating-point number or a complex double-precision, floating-point number to vector x or vector y.
Node Behavior with Different sample length Values
When you set sample length to zero, the node calculates a cumulative solution for the input data from the time the node is called or initialized. When sample length is greater than zero, the node calculates the solution for only the newest set of input data.
Default: 100
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.
Default: No error
The dot product.
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.
Let x represent the input sequence vector x and y represent the input sequence vector y. This node calculates the output dot product using the following equation.
where n is the number of data points and y i * is the complex conjugate of y i . Notice that the output dot product is a scalar value.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application