if '__file__' in globals():
import os
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
import numpy as np
from dezero import Variable
if __name__ == '__main__':
x = Variable(np.array([[0, 1, 2], [3, 4, 5]]))
y = x.reshape((6, ))
y.backward(retain_grad=True)
print(x.grad)
x = Variable(np.array([[1, 2, 3], [4, 5, 6]]))
y = x.T
y.backward()
print(x.grad)
def test_reshape_var_method_tuple(self):
x = Variable(np.array([1, 2, 3, 4, 5, 6]))
y = x.reshape(2, 3)
assert y.shape == (2, 3)
if '__file__' in globals():
import os, sys
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
import numpy as np
from dezero import Variable
import dezero.functions as F
x = Variable(np.array([[1, 2, 3], [4, 5, 6]]))
y = F.reshape(x, (6,))
y.backward(retain_grad=True)
print(x.grad)
x = Variable(np.random.randn(1, 2, 3))
y0 = x.reshape((2, 3))
print(y0)
y1 = x.reshape(2, 3)
print(y1)
x = Variable(np.array([[1, 2, 3], [4, 5, 6]]))
y = F.transpose(x)
y.backward()
print(x.grad)
def test_reshape_var_method(self, input, expected):
x = Variable(np.array([1, 2, 3, 4, 5, 6]))
y = x.reshape(input)
assert y.shape == expected
