# ltifr: LTI frequency response kernel In control: A Control Systems Toolbox

## Description

This function computes the frequency response of the following system:

g(w) = (wI-A) \ B

for the complex frequencies contained in the vector W. The column vector B must have as many rows as the matrix A.

## Usage

 `1` ```ltifr(A, B, w) ```

## Arguments

 `A` State-space matrix, A `B` State-space input-matrix, B. B must have as many rows as the matrix A. `w` Vector of complex frequencies

## Value

Returns the frequency response in vector. `freqresp` utilizes this function for state-space systems.

`freqresp`
 `1` ```## use \code{\link{freqresp}} ```