deriv.rationalfun {rationalfun}

Differentiate a rational function

Description

Calculate the derivative of a rational function. The returned value result is still an object of class "rationalfun".

Usage

## S3 method for class 'rationalfun'
deriv(expr, ...)

Arguments

expr

an object of class "rationalfun"

...

not used in this function

Value

An object of class "rationalfun" representing the derivative of the original rational function.

See Also

deriv.polynomial, deriv

Examples

# (x + 1) / (x^2 + x + 1)
r <- rationalfun(c(1, 1), c(1, 1, 1))
deriv(r)