Function toSignedRad

toSignedRad(rad: number): number
Normalizes a radian value to the range [-π, π).
Parameters
- rad: number
Returns number
The normalized radian value in the range [-π, π).
Example
```
// Normalizing a radian value
const rad = 2 * Math.PI;
const normalized = toSignedRad(rad);
console.log(normalized); // Output: 0
```
- Defined in mymath/src/polar/index.ts:39