Polynomial Convolution

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Description

Convolution and polynomial multiplication.

Usage

1
conv(x, y)

Arguments

x, y

real or complex vectors.

Details

r = conv(p,q) convolves vectors p and q. Algebraically, convolution is the same operation as multiplying the polynomials whose coefficients are the elements of p and q.

Value

Another vector.

Note

conv utilizes fast Fourier transformation.

See Also

deconv, polyadd

Examples

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conv(c(1, 1, 1), 1)
conv(c(1, 1, 1), c(0, 0, 1))
conv(c(-0.5, 1, -1), c(0.5, 0, 1))

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