NegExpression-class: The NegExpression class.

In anqif/cvxr: Disciplined Convex Optimization

The NegExpression class.

Description

This class represents the negation of an affine expression.

Usage

## S4 method for signature 'Expression,missing'
e1 - e2

## S4 method for signature 'Expression,Expression'
e1 - e2

## S4 method for signature 'Expression,ConstVal'
e1 - e2

## S4 method for signature 'ConstVal,Expression'
e1 - e2

## S4 method for signature 'NegExpression'
dim_from_args(object)

## S4 method for signature 'NegExpression'
sign_from_args(object)

## S4 method for signature 'NegExpression'
is_incr(object, idx)

## S4 method for signature 'NegExpression'
is_decr(object, idx)

## S4 method for signature 'NegExpression'
is_symmetric(object)

## S4 method for signature 'NegExpression'
is_hermitian(object)

## S4 method for signature 'NegExpression'
graph_implementation(object, arg_objs, dim, data = NA_real_)

Arguments

e1, e2	The Expression objects or numeric constants to subtract.
object	A NegExpression object.
idx	An index into the atom.
arg_objs	A list of linear expressions for each argument.
dim	A vector representing the dimensions of the resulting expression.
data	A list of additional data required by the atom.

Methods (by generic)

• dim_from_args(NegExpression): The (row, col) dimensions of the expression.

• sign_from_args(NegExpression): The (is positive, is negative) sign of the expression.

• is_incr(NegExpression): The expression is not weakly increasing in any argument.

• is_decr(NegExpression): The expression is weakly decreasing in every argument.

• is_symmetric(NegExpression): Is the expression symmetric?

• is_hermitian(NegExpression): Is the expression Hermitian?

• graph_implementation(NegExpression): The graph implementation of the expression.

anqif/cvxr documentation built on Feb. 1, 2024, 5:42 p.m.