cimport numpy
import numpy
def sum_of_squares(numpy.ndarray[double, ndim=1] arr):
cdef long N = arr.shape[0]
cdef double ss = 0
for i in range(N):
ss += arr[i]**2
return ss
cimport numpy
import numpy
def sum_of_squares(numpy.ndarray[double, ndim=1] arr):
cdef long N = arr.shape[0]
cdef double ss = 0
for i in range(N):
ss += arr[i]**2
return ss
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