Extract the derivative (tangent) part of a dual number

Source: R/dual-class.R

Extract the derivative (tangent) part of a dual number

deriv(d)

# S4 method for class 'dualr'
deriv(d)

# S4 method for class 'numeric'
deriv(d)

Arguments

d

A dual object.

Value

The deriv slot.

Examples

deriv(dual(3, 1))  # 1
#> [1] 1