Initializing help system before first use

Inequality Methods

The Inequality type exposes the following members.

Methods
  Name Description
Public method ChgCoef Change the coefficient for a variable in this row.
Public method ChgCoefs Change the coefficients for multiple variables in this row.
Public method CompareTo Compares the current instance with another object of the same type and returns an integer that indicates whether the current instance precedes, follows, or occurs in the same position in the sort order as the other object.
Public method Equals Determines whether the specified object is equal to the current object.
(Overrides ObjectEquals(Object))
Public method GetCallbackDual Get the dual value value for this row from the solution associated with the current callback.

Note: This function uses under the hood.

Note: Calling this function for multiple rows is not efficient. If you need to get values for multiple rows then consider using to get the values for all rows and then use to extract the value for a particular row.

Public method GetCallbackSlack Get the slack value for this row from the solution associated with the current callback.

Note: This function uses under the hood.

Note: Calling this function for multiple rows is not efficient. If you need to get values for multiple rows then consider using to get the values for all rows and then use to extract the value for a particular row.

Public method GetDual Get the current dual value value for this row.

Note: This function uses under the hood. This is only valid to call if the `Optimizer.Objects.XpressProblem` instance owning this row is currently not under optimization.

Note: Calling this function for multiple rows is not efficient. If you need to get values for multiple rows then consider using to get the values for all rows and then use to extract the value for a particular row. This strategy is also valid from callbacks.

Public method GetHashCode Serves as the default hash function.
(Overrides ObjectGetHashCode)
Public method GetIndex Get the index that this object has in the underlying model. Attention: this is a very advanced function. Use it only if you know exactly what you are doing.
Public method GetIndexForProb Get the index stored in this object but raise an exception if the problem that created this object is not prob.
Public method GetLhs Get the left-hand side of this inequality.
Public method GetName Get the name of this object. Queries the problem instance that owns this object and returns the name from that instance.
Public method GetProblem Get the problem to which this element belongs.
Public method GetRhs Get the right-hand side for this row. Queries the Optimizer.Objects.XpressProblem instance to which this row belongs and returns the right-hand side from that instance.
Public method GetRhsRange Get the right-hand side range for this row. Queries the Optimizer.Objects.XpressProblem instance to which this row belongs and returns the right-hand side range from that instance.
Public method GetSerial Get the serial number of this object.
Public method GetSlack Get the current slack value for this row.

Note: This function uses under the hood. This is only valid to call if the `Optimizer.Objects.XpressProblem` instance owning this row is currently not under optimization.

Note: Calling this function for multiple rows is not efficient. If you need to get values for multiple rows then consider using to get the values for all rows and then use to extract the value for a particular row. This strategy is also valid from callbacks.

Public method GetType Get the type for this row. Queries the Optimizer.Objects.XpressProblem instance to which this row belongs and returns the name obtained from that instance.
Public method GetValue Get the value of this row from an array. The function assumes that data is an array that stores a value for each row in the underlying problem and returns the value from this array that corresponds to this row. data arrays can be obtained for example from prob.GetSlacks() or prob.GetCallbackSlacks().
Public method MarkDeleted  
Public method SetName Set the name of this inequality. Sets the name of this inequality in the problem instance that owns the object.
Public method SetRhs Set the right-hand side for this row. Set the right-hand side in the Optimizer.Objects.XpressProblem instance to which this row belongs.
Public method SetRhsRange Set the right-hand side range for this row. Sets the right-hand side range value in the Optimizer.Objects.XpressProblem instance to which this row belongs.
Public method SetType Set the type for this row. Set the type in the Optimizer.Objects.XpressProblem instance to which this row belongs.
Public method ToString Returns a string that represents the current object.
(Inherited from Object)
Public method UpdateIndex Add delta to this object's index.
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See Also
Covered Topics
Parent Topic Inequality Class

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