矩阵的主对角线元素之和
时间: 2023-12-15 11:30:56 浏览: 235
以下是求解矩阵主对角线元素之和的Python代码:
```python
n = int(input("请输入矩阵的维数:"))
matrix = []
for i in range(n):
row = input("请输入第{}行矩阵元素,以空格分隔:".format(i+1)).split()
matrix.append([int(x) for x in row])
sum = 0
for i in range(n):
sum += matrix[i][i]
print("矩阵主对角线元素之和为:", sum)
```
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