Mathf.Floor

Description

Returns the largest integer smaller than or equal to f.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    void Example()
    {
        Debug.Log(Mathf.Floor(10.0F));   // Prints  10
        Debug.Log(Mathf.Floor(10.2F));   // Prints  10
        Debug.Log(Mathf.Floor(10.7F));   // Prints  10
        Debug.Log(Mathf.Floor(-10.0F));  // Prints -10
        Debug.Log(Mathf.Floor(-10.2F));  // Prints -11
        Debug.Log(Mathf.Floor(-10.7F));  // Prints -11
    }
}