The Entr class.
This class represents the elementwise operation -xlog(x).
Entr(x) ## S4 method for signature 'Entr' to_numeric(object, values) ## S4 method for signature 'Entr' sign_from_args(object) ## S4 method for signature 'Entr' is_atom_convex(object) ## S4 method for signature 'Entr' is_atom_concave(object) ## S4 method for signature 'Entr' is_incr(object, idx) ## S4 method for signature 'Entr' is_decr(object, idx) ## S4 method for signature 'Entr' .grad(object, values) ## S4 method for signature 'Entr' .domain(object)
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. |
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
xAn Expression or numeric constant.
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