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20 lines
727 B
20 lines
727 B
2 years ago
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# Exercise 6: Broadcasting and Slicing
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The goal of this exercise is to learn to access values of n-dimensional arrays efficiently.
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1. Create an 2-dimensional array size 9,9 of 1s. Each value has to be an `int8`.
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2. Using **slicing**, output this array:
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```python
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array([[1, 1, 1, 1, 1, 1, 1, 1, 1],
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[1, 0, 0, 0, 0, 0, 0, 0, 1],
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[1, 0, 1, 1, 1, 1, 1, 0, 1],
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[1, 0, 1, 0, 0, 0, 1, 0, 1],
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[1, 0, 1, 0, 1, 0, 1, 0, 1],
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[1, 0, 1, 0, 0, 0, 1, 0, 1],
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[1, 0, 1, 1, 1, 1, 1, 0, 1],
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[1, 0, 0, 0, 0, 0, 0, 0, 1],
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[1, 1, 1, 1, 1, 1, 1, 1, 1]], dtype=int8)
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```
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https://jakevdp.github.io/PythonDataScienceHandbook/ (section: Computation on Arrays: Broadcasting)
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