dual-class | R Documentation |

The method `initialize`

sets the initial values of a new object of the class `dual`

.

The function `dual`

generates an object of class `dual`

for the representation of dual numbers.

The function `is.dual`

returns `TRUE`

if `x`

is of the class `dual`

. It retuns `FALSE`

otherwise.

The method `show`

shows the content of a `dual`

object.

dual(f, grad) ## S4 method for signature 'dual' initialize(.Object, f = numeric(0), grad = numeric(0)) dual(f, grad) is.dual(x) ## S4 method for signature 'dual' show(object)

`f` |
a single numeric value denoting the "Real" component of the dual number. |

`grad` |
a numeric vector rappresenting the "Dual" components of the dual number. |

`.Object` |
an object of class |

`x` |
an object of class |

`object` |
an object of class |

an object of the class `dual`

.

a logical value indicating if the object is of the class `dual`

or not.

`f`

a single numeric value denoting the "Real" component of the dual number

`grad`

a numeric vector rappresenting the "Dual" components of the dual number

x <- dual(3, 0:1) library(dual) x <- new("dual", f = 1, grad = 1) is.dual(3) is.dual(x)

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