The SigmaMax class.
The maximum singular value of a matrix.
SigmaMax(A = A) ## S4 method for signature 'SigmaMax' to_numeric(object, values) ## S4 method for signature 'SigmaMax' allow_complex(object) ## S4 method for signature 'SigmaMax' dim_from_args(object) ## S4 method for signature 'SigmaMax' sign_from_args(object) ## S4 method for signature 'SigmaMax' is_atom_convex(object) ## S4 method for signature 'SigmaMax' is_atom_concave(object) ## S4 method for signature 'SigmaMax' is_incr(object, idx) ## S4 method for signature 'SigmaMax' is_decr(object, idx) ## S4 method for signature 'SigmaMax' .grad(object, values)
A |
An Expression or matrix. |
object |
A SigmaMax object. |
values |
A list of numeric values for the arguments |
idx |
An index into the atom. |
to_numeric: The largest singular value of A.
allow_complex: Does the atom handle complex numbers?
dim_from_args: The atom is a scalar.
sign_from_args: The atom is positive.
is_atom_convex: The atom is convex.
is_atom_concave: The atom is concave.
is_incr: The atom is not monotonic in any argument.
is_decr: The atom is not monotonic in any argument.
.grad: Gives the (sub/super)gradient of the atom w.r.t. each variable
AAn Expression or numeric matrix.
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