numpy.vstack()
is used to stack a sequence of input arrays vertically into a single array.
Syntax: numpy.vstack (tup)
Parameters:
tup: [sequence of ndarrays] Tuple containing arrays to be stacked. The arrays must have the same shape along all but the first axis.Return: [stacked ndarray] The stacked array of the input arrays.
Code # 1:

Exit:
1st Input array: [1 2 3] 2nd Input array: [4 5 6] Output vertically stacked array: [[1 2 3] [4 5 6]]
Code # 2:

Output:
1st Input array: [[1 2 3] [1 2 3]] 2nd Input array: [[4 5 6] [4 5 6] ] Output stacked array: [[1 2 3] [1 2 3] [4 5 6] [4 5 6]]
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