NumPy imag()
The numpy.imag() function extracts the imaginary part of a complex number or a NumPy array containing complex numbers. If the input contains only real numbers, the function returns zeros.
Syntax
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numpy.imag(val)Parameters
| Parameter | Type | Description |
|---|---|---|
val | array_like | Input array or scalar. It can be real or complex. |
Return Value
| Return Type | Description |
|---|---|
ndarray or scalar | The imaginary part of the input. If the input is real, it returns zero with the same data type. |
Examples
1. Extracting the Imaginary Part of a Complex Number
Here, we extract the imaginary part of a single complex number.
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import numpy as np
# Define a complex number
complex_number = 3 + 4j
# Extract the imaginary part
imaginary_part = np.imag(complex_number)
# Print the result
print("Imaginary part:", imaginary_part)Output:
Imaginary part: 4.0