import numpy as np
def func(x):
return -abs(np.sin(x[0])*np.cos(x[1])*np.exp(abs(1-np.sqrt(x[0]**2+x[1]**2)/np.pi)))
def gfunc(x):
return (func(x+0.001)-func(x))/0.001
if __name__ == "__main__":
import sys
sys.path.append('../')
from tool.plot import plot3d
plot3d(func, np.array([-5.0, 5.0]), np.array([5.12, 5.12]))
#print func(np.array([8.05502, 9.66459]))
import numpy as np
def func(x):
return -(x[1]+47.0)*np.sin(np.sqrt(abs(0.5*x[0]+x[1]+47.0)))\
-x[0]*np.sin(np.sqrt(abs(x[0]-(x[1]+47.0))))
def gfunc(x):
return (func(x + 0.001) - func(x)) / 0.001
if __name__ == "__main__":
import sys
sys.path.append('../')
from tool.plot import plot3d
#print func(np.array([512.0,404.2319]))
plot3d(func, np.array([-10, -10]), np.array([10, 10]))
#!coding=utf-8
import numpy as np
A = 10.0
def func(x):
sum = 0.0
n = x.shape[0]
for i in range(n):
sum += (x[i]**2 - A * np.cos(2 * np.pi * x[i]))
return A * n + sum
def gfunc(x):
return 2 * x + A * 2 * np.pi * np.sin(x)
if __name__ == "__main__":
import sys
sys.path.append('../')
from tool.plot import plot3d
plot3d(func, np.array([9, 13]), np.array([17, 20]))
#print rastrigin(np.array([[1.0, 0.0], [3.0,0.0]]))
import numpy as np
def func(x):
sum = 0.0
n = x.shape[0]
for i in range(n - 1):
sum += (100 * (x[i + 1] - x[i]**2)**2 + (1 - x[i])**2)
return sum
def gfunc(x):
return (func(x + 0.001) - func(x)) / 0.001
if __name__ == "__main__":
import sys
sys.path.append('../')
from tool.plot import plot3d
plot3d(func, np.array([-2, -2]), np.array([2, 3]))