This class represents the elementwise operation \(\log(1 + x)\).
Log1p(x)
# S4 method for class 'Log1p'
to_numeric(object, values)
# S4 method for class 'Log1p'
sign_from_args(object)
# S4 method for class 'Log1p'
.grad(object, values)
# S4 method for class 'Log1p'
.domain(object)
An Expression or numeric constant.
A Log1p object.
A list of numeric values for the arguments
to_numeric(Log1p)
: The elementwise natural logarithm of one plus the input value.
sign_from_args(Log1p)
: The sign of the atom.
.grad(Log1p)
: Gives the (sub/super)gradient of the atom w.r.t. each variable
.domain(Log1p)
: Returns constraints describng the domain of the node
x
An Expression or numeric constant.