for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
"""Implementation of Griewank function."""
import math
class Griewank(object):
def __init__(self, D):
self.D = D
def evaluate(self, sol):
val = 0.0
val1 = 0.0
val2 = 1.0
for i in range(self.D):
val1 = val1 + math.pow(sol[i], 2)
val2 = val2 + \
math.cos((((sol[i]) / math.sqrt(i + 1)) * math.pi) / 180)
val = (1 / 4000) * val1 - val2 + 1
return val
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