a is [1, 2, 3] and b is [10, 20]. Print a 3 by 2 table of every sum a[i] + b[j]. Give a a new axis with a[:, None] so it becomes a column.
Data analysis labNumPy problems
Problem 23 of 50 · Broadcasting · Medium
An outer sum
Add every item of one vector to every item of another.
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Your solution
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