[xdoctest][task 335] reformat example code with google style in python/paddle/base/dygraph/tensor_patch_methods.py #57144
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你的PR提交成功，感谢你对开源项目的贡献! |
megemini
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Sep 9, 2023
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| >>> import paddle | ||
| >>> x = paddle.to_tensor(5., stop_gradient=False) | ||
| >>> for i in range(5): | ||
| ... y = paddle.pow(x, 4.0) | ||
| ... y.backward() | ||
| ... print("{}: {}".format(i, x.grad)) | ||
| 0: [500.] | ||
| 1: [1000.] | ||
| 2: [1500.] | ||
| 3: [2000.] | ||
| 4: [2500.] | ||
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| >>> x.clear_grad() | ||
| >>> print("{}".format(x.grad)) | ||
| 0. | ||
|
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| >>> grad_tensor=paddle.to_tensor(2.) | ||
| >>> for i in range(5): | ||
| ... y = paddle.pow(x, 4.0) | ||
| ... y.backward(grad_tensor) | ||
| ... print("{}: {}".format(i, x.grad)) | ||
| 0: [1000.] | ||
| 1: [2000.] | ||
| 2: [3000.] | ||
| 3: [4000.] | ||
| 4: [5000.] |
| >>> y = paddle.pow(x, 4.0) | ||
| >>> y.backward() | ||
| >>> print("grad of x: {}".format(x.gradient())) | ||
| [500.] |
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| >>> print("w.grad:", w.grad) | ||
| w.grad: [1. 2. 3. 4.] | ||
| >>> print("x.grad:", x.grad) | ||
| x.grad: [ 4. 8. 12. 16.] | ||
| >>> print("y.grad:", y.grad) | ||
| y.grad: [2. 4. 6. 8.] |
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| >>> import paddle | ||
| >>> x = paddle.rand([2, 5]) | ||
| >>> print(x) | ||
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| # Tensor(shape=[2, 5], dtype=float32, place=CPUPlace, | ||
| # [[0.30574632, 0.55739117, 0.30902600, 0.39413780, 0.44830436], | ||
| # [0.79010487, 0.53972793, 0.09495186, 0.44267157, 0.72112119]]) | ||
| Tensor(shape=[2, 5], dtype=float32, place=CPUPlace, | ||
| [[0.30574632, 0.55739117, 0.30902600, 0.39413780, 0.44830436], | ||
| [0.79010487, 0.53972793, 0.09495186, 0.44267157, 0.72112119]]) |
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| >>> print(x) | ||
| Tensor(shape=[], dtype=float32, place=CPUPlace, stop_gradient=True, | ||
| 2.) | ||
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| >>> print(y) | ||
| Tensor(shape=[], dtype=float32, place=CPUPlace, stop_gradient=True, | ||
| 2.) |
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Description
修改如下文件的示例代码，使其通过
xdoctest检查：python/paddle/base/dygraph/tensor_patch_methods.py预览：
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@sunzhongkai588 @SigureMo @megemini