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BigInteger.Subtract Method

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Subtracts one BigInteger value from another and returns the result.

Namespace:  System.Numerics
Assembly:  System.Numerics (in System.Numerics.dll)

Syntax

'Declaration
Public Shared Function Subtract ( _
    left As BigInteger, _
    right As BigInteger _
) As BigInteger

public static BigInteger Subtract(
    BigInteger left,
    BigInteger right
)

Parameters

Return Value

Type: System.Numerics.BigInteger
The result of subtracting right from left.

Remarks

Languages that do not support custom operators can use the Subtract method to perform subtraction using BigInteger values.

The Multiply method is a useful substitute for the subtraction operator when instantiating a BigInteger variable by assigning it the difference that results from subtraction, as shown in the following example.

' The statement
'    Dim number As BigInteger = Int64.MinValue - Int64.MaxValue
' produces compiler error BC30439: Constant expression not representable in type 'Long'.
' The alternative:
Dim number As BigInteger = BigInteger.Subtract(Int64.MinValue, Int64.MaxValue)

// The statement
//    BigInteger number = Int64.MinValue - Int64.MaxValue;
// produces compiler error CS0220: The operation overflows at compile time in checked mode.
// The alternative:
BigInteger number = BigInteger.Subtract(Int64.MinValue, Int64.MaxValue);

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.