题解 | 将向量转换为对角矩阵
将向量转换为对角矩阵
https://www.nowcoder.com/practice/fa80e7e3e07345b1993b93f46182643b
import numpy as np
def make_diagonal(x):
arr = np.array( x , dtype=np.float32 )
return np.diag(arr)
if __name__ == "__main__":
x = np.array(eval(input()))
print(make_diagonal(x))
