Why is that Mathf.cos is not accurate??

Here is my code:

`function Update () { print(Mathf.Cos(135)); }`

unity will print -0.9960 but is should be -0.7071?!

I try it on my calculator?

Is this a bug?

by the way I’m using unity 3.4.0f5

Why is that Mathf.cos is not accurate??

Here is my code:

`function Update () { print(Mathf.Cos(135)); }`

unity will print -0.9960 but is should be -0.7071?!

I try it on my calculator?

Is this a bug?

by the way I’m using unity 3.4.0f5

Mathf.Cos uses radians, *not degrees*. Try

```
Mathf.Cos(135 * Mathf.Deg2Rad);
```

and see what you get!