zp2tf {control}

Zero-pole-gain model conversion to Transfer function model

Description

zp2tf converts the model for a zero-pole-gain system to transfer function representation

Usage

zp2tf(z, p, k)

Arguments

z

A numeric vector containing zero locations

p

A numeric vector containing pole locations

k

A numeric vector for gain

Details

zp2tf converts a model object for a zero-pole-gain system to a transfer function model

Another possible usage is: zp2tf(sys)

where sys is an object of zero-pole-gain model.

Value

Returns a list object of 'tf' class.

See Also

zp2ss tf2zp

Examples

systf <- zp2tf(zpk(NULL, c(-1,-1), 1))
zp2tf(tf2zp(c(2,2,1), c(1,2,1)))