Computes the base e natural logarithm of a specified input value.
If x is 0, ln is - . If x is not complex and is less than 0, ln is not a number (NaN).
An input for this operation. x must be in the range [1/e, 1) and unsigned. The integer word length must be 0 bits.
This input supports only scalar values of the fixed-point data type.
Computing ln(x) When x is Outside the Valid Range
Complete the following steps to compute ln( x) when x is outside the range [1/e, 1):
NI recommends a binary shift to transform x into M because this operation requires fewer FPGA resources than a division operation.
Boolean value that specifies whether downstream nodes are ready for this node to return a new value.
Use Feedback Node to wire this input to the ready for input input of a downstream node. If this input is False during a given cycle, output valid returns False during that cycle.
|True||The downstream node is ready for the next data element.|
|False||The downstream node is not ready for the next data element.|
Natural logarithm of x. If x is outside the range [1/e, 1), ln(x) is undefined.
Boolean value that indicates whether this node computes a result that downstream nodes can use.
Wire this output to the input valid input of a downstream node to transfer data from the node to the downstream node.
|True||Downstream nodes can use the result this node computes.|
|False||This node returns an undefined value that downstream nodes cannot use.|
Boolean value that indicates whether this node is ready to accept new input data.
Use Feedback Node to wire this output to the ready for output output of an upstream node.
|True||The node is ready to accept new input data.|
|False||The node is not ready to accept new input data.|
Where This Node Can Run:
Desktop OS: none
FPGA: All devices
Web Server: Not supported in VIs that run in a web application