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CVXR (version 1.0)

Entr-class: The Entr class.

Description

This class represents the elementwise operation \(-xlog(x)\).

Usage

Entr(x)

# S4 method for Entr to_numeric(object, values)

# S4 method for Entr sign_from_args(object)

# S4 method for Entr is_atom_convex(object)

# S4 method for Entr is_atom_concave(object)

# S4 method for Entr is_incr(object, idx)

# S4 method for Entr is_decr(object, idx)

# S4 method for Entr .grad(object, values)

# S4 method for Entr .domain(object)

Arguments

x

An '>Expression or numeric constant.

object

An '>Entr object.

values

A list of numeric values for the arguments

idx

An index into the atom.

Methods (by generic)

  • to_numeric: The elementwise entropy function evaluated at the value.

  • sign_from_args: The sign of the atom is unknown.

  • is_atom_convex: The atom is not convex.

  • is_atom_concave: The atom is concave.

  • is_incr: The atom is weakly increasing.

  • is_decr: The atom is weakly decreasing.

  • .grad: Gives the (sub/super)gradient of the atom w.r.t. each variable

  • .domain: Returns constraints descrbing the domain of the node

Slots

x

An '>Expression or numeric constant.