frequency domain in python

main.py
import numpy as np
import matplotlib.pyplot as plt

# Generate a sample signal
Fs = 1000  # Sampling frequency
T = 1/Fs   # Sampling interval
t = np.arange(0, 1, T)   # Time vector
f = 5     # Frequency of the signal
x = np.sin(2*np.pi*f*t)

# Perform FFT to convert to frequency domain
n = len(x)  # Length of the signal
frequencies = np.fft.fftfreq(n, T)[:n//2]  # Frequency components
X = np.fft.fft(x)[:n//2]  # FFT of the signal

# Plot the frequency domain representation
plt.figure()
plt.stem(frequencies, np.abs(X))
plt.xlabel('Frequency [Hz]')
plt.ylabel('Magnitude')
plt.title('Frequency Domain')
plt.show()
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