C# | Math.Abs() Method | Set – 2
Last Updated :
01 Feb, 2019
C# | Math.Abs() Method | Set – 1
In C#, Abs() is a Math class method which is used to return the absolute value of a specified number. This method can be overload by passing the different type of parameters to it. There are total 7 methods in its overload list.
- Math.Abs(Decimal)
- Math.Abs(Double)
- Math.Abs(Int16)
- Math.Abs(Int32)
- Math.Abs(Int64)
- Math.Abs(SByte)
- Math.Abs(Single)
Math.Abs(Int64)
This method is used to return the absolute value of a 64-bit signed integer.
Syntax:
public static long Abs (long val);
Parameter:
val: It is the required number which is greater than Int64.MinValue, but less than or equal to Int64.MaxValue of type System.Int64.
Return Type: It returns a 64-bit signed integer say r, such that 0 ≤ r ≤ Int64.MaxValue.
Exception: This method will give OverflowException if the value of val is equals to Int64.MinValue.
Example:
using System;
class Geeks {
public static void Main()
{
long [] val = {Int64.MaxValue, 78345482, -4687985, 0};
foreach ( long value in val)
Console.WriteLine( "Absolute value of {0} = {1}" ,
value, Math.Abs(value));
}
}
|
Output:
Absolute value of 9223372036854775807 = 9223372036854775807
Absolute value of 78345482 = 78345482
Absolute value of -4687985 = 4687985
Absolute value of 0 = 0
Math.Abs(SByte)
This method is used to return the absolute value of an 8-bit signed integer.
Syntax:
public static sbyte Abs (sbyte val);
Parameter:
val: It is the required number which is greater than SByte.MinValue, but less than or equal to SByte.MaxValue of type System.SByte.
Return Type: It returns a 8-bit signed integer say r, such that 0 ≤ r ≤ SByte.MaxValue.
Exception: This method will give OverflowException if the value of val is equals to SByte.MinValue.
Example:
using System;
class Geeks {
public static void Main()
{
sbyte [] sb = {SByte.MaxValue, 45, -41, 0};
foreach ( sbyte value in sb)
Console.WriteLine( "Absolute value of {0} = {1}" ,
value, Math.Abs(value));
}
}
|
Output:
Absolute value of 127 = 127
Absolute value of 45 = 45
Absolute value of -41 = 41
Absolute value of 0 = 0
Math.Abs(Single)
This method is used to return the absolute value of a single-precision floating-point number.
Syntax:
public static float Abs (float val);
Parameter:
val: It is the required number which is greater than or equal to Single.MinValue, but less than or equal to MaxValue of type System.Single.
Return Type: It returns a single-precision floating-point number say r, such that 0 ≤ r ≤ Single.MaxValue.
Note:
- If val is equal to NegativeInfinity or PositiveInfinity, the return value will be PositiveInfinity.
- If the val is equal to NaN then return value will be NaN.
Example:
using System;
class Geeks {
public static void Main()
{
float nan = float .NaN;
float [] fl = { float .MinValue, 127.58f, 0.000f,
7556.48e10f, nan, float .MaxValue};
foreach ( float value in fl)
Console.WriteLine( "Absolute value of {0} = {1}" ,
value, Math.Abs(value));
}
}
|
Output:
Absolute value of -3.402823E+38 = 3.402823E+38
Absolute value of 127.58 = 127.58
Absolute value of 0 = 0
Absolute value of 7.55648E+13 = 7.55648E+13
Absolute value of NaN = NaN
Absolute value of 3.402823E+38 = 3.402823E+38
Reference: https://docs.microsoft.com/en-us/dotnet/api/system.math.abs?view=netframework-4.7.2
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