qiskit.optimization.problems.QuadraticConstraint
class QuadraticConstraint(quadratic_program, name, linear, quadratic, sense, rhs)
Representation of a quadratic constraint.
Constructs a quadratic constraint, consisting of a linear and a quadratic term.
Parameters
- quadratic_program (
Any) – The parent quadratic program. - name (
str) – The name of the constraint. - linear (
Union[ndarray,spmatrix,List[float],Dict[Union[int,str],float]]) – The coefficients specifying the linear part of the constraint. - quadratic (
Union[ndarray,spmatrix,List[List[float]],Dict[Tuple[Union[int,str],Union[int,str]],float]]) – The coefficients specifying the linear part of the constraint. - sense (
ConstraintSense) – The sense of the constraint. - rhs (
float) – The right-hand-side of the constraint.
__init__
__init__(quadratic_program, name, linear, quadratic, sense, rhs)
Constructs a quadratic constraint, consisting of a linear and a quadratic term.
Parameters
- quadratic_program (
Any) – The parent quadratic program. - name (
str) – The name of the constraint. - linear (
Union[ndarray,spmatrix,List[float],Dict[Union[int,str],float]]) – The coefficients specifying the linear part of the constraint. - quadratic (
Union[ndarray,spmatrix,List[List[float]],Dict[Tuple[Union[int,str],Union[int,str]],float]]) – The coefficients specifying the linear part of the constraint. - sense (
ConstraintSense) – The sense of the constraint. - rhs (
float) – The right-hand-side of the constraint.
Methods
__init__(quadratic_program, name, linear, …) | Constructs a quadratic constraint, consisting of a linear and a quadratic term. |
evaluate(x) | Evaluate the left-hand-side of the constraint. |
Attributes
linear | Returns the linear expression corresponding to the left-hand-side of the constraint. |
name | Returns the name of the constraint. |
quadratic | Returns the quadratic expression corresponding to the left-hand-side of the constraint. |
quadratic_program | Returns the parent QuadraticProgram. |
rhs | Returns the right-hand-side of the constraint. |
sense | Returns the sense of the constraint. |
Sense
alias of qiskit.optimization.problems.constraint.ConstraintSense
evaluate
evaluate(x)
Evaluate the left-hand-side of the constraint.
Parameters
x (Union[ndarray, List, Dict[Union[int, str], float]]) – The values of the variables to be evaluated.
Return type
float
Returns
The left-hand-side of the constraint given the variable values.
linear
Returns the linear expression corresponding to the left-hand-side of the constraint.
Return type
LinearExpression
Returns
The left-hand-side linear expression.
name
Returns the name of the constraint.
Return type
str
Returns
The name of the constraint.
quadratic
Returns the quadratic expression corresponding to the left-hand-side of the constraint.
Return type
QuadraticExpression
Returns
The left-hand-side quadratic expression.
quadratic_program
Returns the parent QuadraticProgram.
Return type
Any
Returns
The parent QuadraticProgram.
rhs
Returns the right-hand-side of the constraint.
Return type
float
Returns
The right-hand-side of the constraint.
sense
Returns the sense of the constraint.
Return type
ConstraintSense
Returns
The sense of the constraint.