System Namespace Math Class
Returns the number with the specified precision nearest the specified value.
[ VB ]
Overloads Public Shared Function Round ( _
ByVal d As Decimal, _
ByVal decimals As Integer _
) As Decimal
[ C# ]
public static decimal Round (
decimal d,
int decimals
);
[ C++ ]
public: static Decimal Round (
Decimal d,
int decimals
);
[ JScript ]
public static function Round (
d : Decimal,
decimals : int
) : Decimal;
- d
- A Decimal number to be rounded.
- decimals
- The number of significant fractional digits ( precision ) in the return value.
The number nearest d with precision equal to decimals. If d is halfway between two numbers, one of which is even and the other odd, then the even number is returned. If the precision of d is less than decimals, then d is returned unchanged.
The decimals parameter specifies the number of significant fractional digits in the return value and ranges from 0 to 28. If decimals is zero, then a whole number is returned.
The behavior of this method follows IEEE Standard 754, section 4. This kind of rounding is sometimes called rounding to nearest, or banker's rounding. If decimals is zero, this kind of rounding is sometimes called rounding toward zero.
[ Visual Basic, C#, C++ ] The following code example demonstrates rounding to nearest.
[ VB ]
Math.Round ( 3.44, 1 ) 'Returns 3.4.
Math.Round ( 3.45, 1 ) 'Returns 3.4.
Math.Round ( 3.46, 1 ) 'Returns 3.5.
[ C# ]
Math.Round ( 3.44, 1 ); //Returns 3.4.
Math.Round ( 3.45, 1 ); //Returns 3.4.
Math.Round ( 3.46, 1 ); //Returns 3.5.
[ C++ ]
Math::Round ( 3.44, 1 ); //Returns 3.4.
Math::Round ( 3.45, 1 ); //Returns 3.4.
Math::Round ( 3.46, 1 ); //Returns 3.5.
Math Members Math.Round Overload List Ceiling Floor
