[Solved] What will be the dtype of the result after this operation?import numpy as np arr1 = np.array([1+2j, 3+4j]) arr2 = np.array([1, 2]) result = arr1 * arr2 print(result.dtype) | NumPy

NumPy - Array Operations

What will be the dtype of the result after this operation?

import numpy as np
arr1 = np.array([1+2j, 3+4j])
arr2 = np.array([1, 2])
result = arr1 * arr2
print(result.dtype)

Aint64

Bcomplex64

Cfloat64

Dcomplex128

Step-by-Step Solution

Solution:

Step 1: Identify input dtypes
arr1 is complex128 by default, arr2 is int64.
Step 2: Apply type promotion rules
Multiplying complex128 and int64 promotes to complex128.
Final Answer:
complex128 -> Option D
Quick Check:
complex128 * int64 = complex128 [OK]

Quick Trick: Complex with int promotes to complex128 [OK]

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