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# How to Calculate Trace of a Matrix?

# How to Calculate Trace of a Matrix?

This recipe helps you Calculate Trace of a Matrix

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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