Python · Scientific Computing & Data Science

You try np.array([1,2,3]) + np.array([10,20]). What happens and why?

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What does this print? ``` import numpy as np a = np.array([1, 2, 3]) print(a + 10) ```

What does this print? ``` import numpy as np m = np.ones((3, 2)) v = np.array([10, 20]) print((m + v)[0]) ```

What does this print? ``` import numpy as np a = np.array([1, 2, 3]) a[0] = 7.9 print(a) ```

What does this print? ``` import numpy as np a = np.array([100, 100], dtype=np.int8) print(a[0] + a[1]) ```

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