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映射文档 No. 2 #5702

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## torch.Tensor.T
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### [torch.Tensor.T](https://pytorch.org/docs/stable/tensors.html#torch.Tensor.T)

```python
torch.Tensor.T
```

### [paddle.Tensor.T](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#tensor)

```python
paddle.Tensor.T
```

两者功能一致,均无参数
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## torch.Tensor.device

### [torch.Tensor.device](https://pytorch.org/docs/stable/generated/torch.Tensor.device.html)

```python
torch.Tensor.device
```

### [paddle.Tensor.place](https://www.paddlepaddle.org.cn/documentation/docs/api/paddle/Tensor_cn.html#place)

```python
paddle.Tensor.place
```

两者功能一致,均无参数,都用来查看一个 Tensor 的设备位置
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## torch.Tensor.grad

### [torch.Tensor.grad](https://pytorch.org/docs/stable/generated/torch.Tensor.grad.html)

```python
torch.Tensor.grad
```

### [paddle.Tensor.grad](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#grad)

```python
paddle.Tensor.grad
```

两者功能一致,均无参数,都用来查看一个 Tensor 的梯度
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## torch.Tensor.imag

### [torch.Tensor.imag](https://pytorch.org/docs/stable/generated/torch.Tensor.imag.html)

```python
torch.Tensor.imag
```

### [paddle.Tensor.imag](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#imag-name-none)

```python
paddle.Tensor.imag
```

两者功能一致,均无参数,用于返回原复数 Tensor 的虚部数值
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## torch.Tensor.is_leaf

### [torch.Tensor.is_leaf](https://pytorch.org/docs/stable/generated/torch.Tensor.is_leaf.html)

```python
torch.Tensor.is_leaf
```

### [paddle.Tensor.is_leaf](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#is-leaf)

```python
paddle.Tensor.is_leaf
```

两者功能一致,均为参数,判断 Tensor 是否为叶子 Tensor
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## torch.Tensor.is_sparse

### [torch.Tensor.is_sparse](https://pytorch.org/docs/stable/generated/torch.Tensor.is_sparse.html)

```python
torch.Tensor.is_sparse
```

### [paddle.Tensor.is_sparse](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html)

```python
paddle.Tensor.is_sparse()
```

两者功能一致,前者可以直接访问, 后者需要调用
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## torch.Tensor.ndim

### [torch.Tensor.ndim](https://pytorch.org/docs/stable/generated/torch.Tensor.ndim.html)

```python
torch.Tensor.ndim
```

### [paddle.Tensor.ndim](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#ndim)

```python
paddle.Tensor.ndim
```

两者功能一致,均无参数,查看一个 Tensor 的维度
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## torch.Tensor.real

### [torch.Tensor.real](https://pytorch.org/docs/stable/generated/torch.Tensor.real.html)

```python
torch.Tensor.real
```

### [paddle.Tensor.real](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#real-name-none)

```python
paddle.Tensor.real
```

两者功能一致,均无参数,用于返回 Tensor 的实部数值
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## torch.Tensor.shape

### [torch.Tensor.shape](https://pytorch.org/docs/stable/generated/torch.Tensor.shape.html)

```python
torch.Tensor.shape
```

### [paddle.Tensor.shape](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/Tensor_cn.html#shape)

```python
paddle.Tensor.shape
```

两者功能一致,均无参数,都用来查看一个 Tensor 的 shape,shape 是 Tensor 的一个重要的概念,其描述了 tensor 在每个维度上的元素数量。
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## torch.nn.functional.affine_grid
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### [torch.nn.functional.affine_grid](https://pytorch.org/docs/stable/generated/torch.nn.functional.affine_grid.html?highlight=affine_grid#torch.nn.functional.affine_grid)

```python
torch.nn.functional.affine_grid(theta,
size,
align_corners=None)
```

### [paddle.nn.functional.affine_grid](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/functional/affine_grid_cn.html)

```python
paddle.nn.functional.affine_grid(theta,
out_shape,
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align_corners=True,
name=None)
```

两者功能一致,仅参数名不一致,具体如下:
### 参数差异
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| PyTorch | PaddlePaddle | 备注 |
| ------------- | ------------ | ------------------------------------------------------ |
| theta | theta | 指定仿射变换矩阵 |
| size | out_shape | 指定目标输出图像大小 |
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| align_corners | align_corners | 指定是否是像素中心对齐 |