fastSum

titanq.fastSum(exprVector: VectorExpression | VariableVector) → Expression

ℹ️ This feature is experimental and may change.

Computes the sum of all elements in the provided VectorExpression or VariableVector. This function is an faster alternative to the traditional sum() operation for vector-based expressions.

Parameters

exprVector: The VectorExpression or VariableVector whose elements are to be summed.

Returns

Expression: An Expression representing the sum of the elements in exprVector.

Raises

ValueError: If the provided input is not of type VectorExpression or VariableVector.

Examples

>>> from titanq import Model, Vtype
>>> x = model.add_variable_vector('x', 1000, Vtype.BINARY)
>>> y = model.add_variable_vector('y', 1000, Vtype.BINARY))
>>> exprA = fastSum((np.array([3, 4]) * x + (x * y) - 5 * y))
>>> exprB = fastSum(x)