Derivative x(t) PtByPt (Not in Base Package)

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

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Performs a discrete differentiation on x.

This VI is similar to the Derivative x(t) VI.

	initialize, when TRUE, initializes the internal state of the VI.
	x is an input data point.
	initial condition is the value used to calculate the derivative for the first and second point. The default is 0.
	dt is the sampling interval and must be greater than zero. The default is 1.0. If dt is less than or equal to zero, the VI sets dx/dt to an empty array and returns an error.
	dx/dt is the differentiated data point.
	error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.