didppy.log

didppy.log(x, y)

Returns an expression representing the logarithm of x using y as a base.

Parameters:

• x (IntExpr, IntVar, IntResourceVar, FloatExpr, FloatVar, FloatResourceVar, int, or float) – Input.

• y (IntExpr, IntVar, IntResourceVar, FloatExpr, FloatVar, FloatResourceVar, int, or float) – Base.

Returns:

The logarithm.

Return type:

FloatExpr

Examples

>>> import didppy as dp
>>> model = dp.Model()
>>> state = model.target_state
>>> x = dp.FloatExpr(4.0)
>>> y = dp.FloatExpr(2.0)
>>> dp.log(x, y).eval(state, model)
2.0