2020-11-14 23:01:51 +00:00
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<p align="center">
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<img src="./assets/logo.png" style="max-width: 50%;"/>
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</p>
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---
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2020-11-14 19:27:42 +00:00
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Neural network library written in Python completely from scratch, using only numpy.
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## Usage
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```
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2020-11-15 19:04:49 +00:00
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from pygrad.tensor import Tensor
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2020-11-14 19:27:42 +00:00
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2020-11-15 19:04:49 +00:00
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a, b = Tensor(np.random.randn(3, 1)), Tensor(np.random.randn(1, 3))
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2020-11-14 19:27:42 +00:00
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c = a.mul(b)
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2020-11-14 20:58:11 +00:00
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d = c.exp()
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d.backward()
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2020-11-14 19:27:42 +00:00
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2020-11-14 20:58:11 +00:00
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print(a.grad, b.grad, c.grad)
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2020-11-15 19:04:49 +00:00
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# should output something like
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# [[-16.51232262 -16.51232262 -16.51232262]]
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# [[-53.88103349 -53.88103349 -53.88103349]]
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# [[ 3.50417648 3.50417648 3.50417648]
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# [15.67424587 15.67424587 15.67424587]
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# [16.0131011 16.0131011 16.0131011 ]]
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2020-11-14 19:27:42 +00:00
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```
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## References
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- <https://github.com/geohot/tinygrad/>
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- <https://github.com/karpathy/micrograd/>
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## Copying
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This is free and unencumbered software released into the public domain.
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