python - python root finding in integers

Question

Is there tools for optimization in python, where I can choose target value for function and get best parameters, that will be integers?

Example, my function is:

f(x) = 4*A + B

So If choose 5 as a target value it will return me A=1 and B=1

标签： pythonoptimizationconvergence

Answer 1

Maybe a constraint solver:

# https://pypi.org/project/python-constraint/
from constraint import *

problem = Problem()
problem.addVariables(["a","b"],range(1,100000))
problem.addConstraint(ExactSumConstraint(5,[4,1]))
problem.getSolutions()

This gives:

[{'a': 1, 'b': 1}]