Math.cos() gives wrong result

Question

According to Wolfram Mathematica: cos(50) = 0.6427876096865394; But this code in Java: ``` System.out.println(Math.cos(50)); ``` gives 0.9649660284921133. What is wrong with `java.lang.Math`?

Accepted Answer

`Math.cos()` expects the parameter to be in radians. This will return the result you need:

```
Math.cos(Math.toRadians(50));
```

Math.cos() gives wrong result

Solution

Problem