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目的，去除指定行列的￥符号。

https://wiki.python.org/moin/TimeComplexity

import torchimport numpy as np#abs 绝对值转换data = [-1,-2,-3,4]tensor = torch.FloatTensor(data) #32bit浮点数print( '\nabs', '\nnumpy',np.abs(data), '\ntorch',torch.abs(tensor),)print( ...

import torchfrom torch.autograd import Variabletensor = torch.FloatTensor([[1, 2], [3, 4]])variable = Variable(tensor, requires_grad=True) #numpy张量变为Variable, requires_grad用来指定是否需要计算梯度t_out = t...

来源https://github.com/MorvanZhou/PyTorch-Tutorial/blob/master/tutorial-contents/203_activation.py#线性方程linear和非线性方程nonlinear#非线性任务达成#y=Wx(神经网络) （y预测值W所需参数x输入值）--> y = AF(Wx)#AF()为非线性方程，激励函数，可自建可微...

来源https://github.com/MorvanZhou/PyTorch-Tutorial/blob/master/tutorial-contents/301_regression.pyimport torchimport torch.nn.functional as Fimport matplotlib.pyplot as plt# torch.manual_seed(1) ...

来源https://github.com/MorvanZhou/PyTorch-Tutorial/blob/master/tutorial-contents/302_classification.pyimport torchimport torch.nn.functional as Fimport matplotlib.pyplot as plt# torch.manual_seed(1...