# What you can do with NumPy:
# 1. Data analysis (pandas builds on NumPy)
# 2. Machine learning (scikit-learn uses NumPy)
# 3. Image processing (OpenCV, PIL)
# 4. Scientific computing (SciPy)
# 5. Deep learning (TensorFlow, PyTorch)

# Example: Linear regression in one line
X = np.random.random((100, 2))
y = np.random.random(100)
weights = np.linalg.lstsq(X, y, rcond=None)[0]