EN
C# / .NET - Math.Floor() method example
0 points
The Math.Floor() function returns an integer value that is smaller than or equal to the argument - the result of round down operation.
xxxxxxxxxx1
using System;2
3
public class Program4
{5
public static void Main(string[] args) 6
{7
Console.WriteLine( Math.Floor( 5.0 )); // 58
9
Console.WriteLine( Math.Floor( 2.49 )); // 210
Console.WriteLine( Math.Floor( 2.50 )); // 211
Console.WriteLine( Math.Floor( 2.51 )); // 212
13
Console.WriteLine( Math.Floor( -2.49 )); // -314
Console.WriteLine( Math.Floor( -2.50 )); // -315
Console.WriteLine( Math.Floor( -2.51 )); // -316
17
Console.WriteLine( Math.Floor( 0.999 )); // 018
Console.WriteLine( Math.Floor( 1.001 )); // 119
Console.WriteLine( Math.Floor( -1.001 )); // -220
}21
}| Syntax |
xxxxxxxxxx1 namespace System2 {3 public static class Math4 {5 // ...6 public static decimal Floor(decimal number) { ... }7 public static double Floor(double number) { ... }8 // ...9 }10 } |
| Parameters | number - double or decimal value (primitive value). |
| Result |
Rounded down If If If |
| Description | Floor is a static method that takes only one parameter and returns a rounded down value. |
xxxxxxxxxx1
using System;2
3
public class Program4
{5
static double FloorPrecised(double number, int precision)6
{7
double power = Math.Pow(10, precision);8
9
return Math.Floor(number * power) / power;10
}11
12
public static void Main(string[] args) 13
{14
Console.WriteLine( FloorPrecised( 5 , 0 ) ); // 515
Console.WriteLine( FloorPrecised( 5.0 , 0 ) ); // 516
Console.WriteLine( FloorPrecised( .5, 0 ) ); // 017
18
Console.WriteLine( FloorPrecised( 1.1234, 0 ) ); // 119
Console.WriteLine( FloorPrecised( 1.1234, 1 ) ); // 1.120
Console.WriteLine( FloorPrecised( 1.1235, 2 ) ); // 1.1221
Console.WriteLine( FloorPrecised( 1.1235, 3 ) ); // 1.12322
23
Console.WriteLine( FloorPrecised( -1.1234, 0 ) ); // -224
Console.WriteLine( FloorPrecised( -1.1234, 1 ) ); // -1.225
Console.WriteLine( FloorPrecised( -1.1234, 2 ) ); // -1.1326
Console.WriteLine( FloorPrecised( -1.1234, 3 ) ); // -1.12427
28
Console.WriteLine( FloorPrecised( 1234, -1 ) ); // 123029
Console.WriteLine( FloorPrecised( 1234, -2 ) ); // 120030
Console.WriteLine( FloorPrecised( 1234, -3 ) ); // 100031
32
Console.WriteLine( FloorPrecised( 5_000.000_001, 0 ) ); // 500033
Console.WriteLine( FloorPrecised( 5_000.000_001, 6 ) ); // 5000.00000134
Console.WriteLine( FloorPrecised( 5_000.000_001, -3 ) ); // 500035
}36
}