Calculates the derivative of a univariate polynomial.
# S3 method for class 'polynomial'
deriv(expr, ...)
Arguments
- expr
an object of class "polynomial".
- ...
further arguments to be passed to or from methods.
Details
This is a method for the generic function deriv.
Value
Derivative of the polynomial.
Examples
pr <- poly.calc(1:5)
pr
#> -120 + 274*x - 225*x^2 + 85*x^3 - 15*x^4 + x^5
## -120 + 274*x - 225*x^2 + 85*x^3 - 15*x^4 + x^5
deriv(pr)
#> 274 - 450*x + 255*x^2 - 60*x^3 + 5*x^4
## 274 - 450*x + 255*x^2 - 60*x^3 + 5*x^4