Human: Can you show me a Python function to interpolate a matrix. Assistant: 
Here is a Python function to interpolate a matrix

import numpy as np

def _interpolate_matrix(matrix, x, y):
    """Interpolate a matrix."""
    return matrix[int(x)][int(y)]

# Enter the matrix
matrix = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])

# Calling the function
print((_interpolate_matrix(matrix, 1, 1)))

#Example Output
# 5

#Remember to inspect code for bugs.