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# How to Calculate Trace of a Matrix using numpy in python

This recipe helps you Calculate Trace of a Matrix using numpy in python

Calculating trace of matrix isn"t easy but have you tried to do it in python?

So this is the recipe on how we can Calculate Trace of a Matrix.

```
import numpy as np
```

We have only imported numpy which is needed.

We have created a matrix a matirx on which we will perform operation.
```
matrix = np.array([[1, 2, 3],
[4, 5, 6],
[7, 8, 9],
[10, 11, 12]])
```

We know that the trace of a matrix is calculated by summing the values of diagonals. So we have done the same to find the trace.
```
print("Calculate the tracre of the matrix: ", matrix.diagonal().sum())
```

So the output comes as

Calculate the tracre of the matrix: 15

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