需要帮助将矩阵公式转换为Python代码

import numpy as np

matrix_a = np.array([[1, 2], [3, 4]])
matrix_b = np.array([[5, 6], [7, 8]])

matrix_sum = np.add(matrix_a, matrix_b)

print(matrix_sum)

import numpy as np

# 定义矩阵
matrix_a = np.array([[1, 2], [3, 4]])
matrix_b = np.array([[5, 6], [7, 8]])

# 执行矩阵运算
matrix_sum = np.add(matrix_a, matrix_b)

# 输出结果
print(matrix_sum)