## 🧮 Math Extensions

Use `Double.round(placeInt)` to Round a double with given `placeInt`. See this example :

```kotlin
fun testMath() {
    val x = 1.25
    val y = x.round(1) // y is 1.3
    val z = x.round(0) // z is 1.0
}
```

Use `calculateDistance()` to calculate distance between two points on Google Map.