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"""Implementation of Rosenbrock benchmark function."""
import math
__all__ = ['Rosenbrock']
class Rosenbrock(object):
@classmethod
def function(cls):
def evaluate(D, sol):
val = 0.0
for i in range(D - 1):
val = val + 100 * \
math.pow(sol[i + 1] - math.pow((sol[i]), 2),
2) + math.pow((sol[i] - 1), 2)
return val
return evaluate
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