# Cosine of Degree Values in NumPy

To calculate trigonometric functions such as sine, cosine and tangent in Python we can use functions from the NumPy module such as `np.cos()`

, `np.sin()`

and `np.tan()`

.

To get cosine using NumPy our code would be:

```
import numpy as np
result = np.cos(0.8)
print(result)
```

```
0.6967067093471655
```

## Cosine of Degree

To convert angle radians to degrees for use in the `cos()`

function, we can pass it through `np.radians()`

first like this:

```
import numpy as np
result = np.cos(np.radians(35))
print(result)
```

```
0.8191520442889918
```

An alternative is to use the NumPy `deg2rad()`

function, which might be more readable to you.

```
import numpy as np
result = np.cos(np.deg2rad(35))
print(result)
```

```
0.8191520442889918
```