# Math.IEEERemainder Method

Silverlight

Returns the remainder resulting from the division of a specified number by another specified number.

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

## Syntax

```public static double IEEERemainder(
double x,
double y
)
```

#### Parameters

x
Type: System.Double
A dividend.
y
Type: System.Double
A divisor.

#### Return Value

Type: System.Double
A number equal to x - (y Q), where Q is the quotient of x / y rounded to the nearest integer (if x / y falls halfway between two integers, the even integer is returned).
If x - (y Q) is zero, the value +0 is returned if x is positive, or -0 if x is negative.
If y = 0, NaN (Not-A-Number) is returned.

## Remarks

This operation complies with the remainder operation defined in Section 5.1 of ANSI/IEEE Std 754-1985; IEEE Standard for Binary Floating-Point Arithmetic; Institute of Electrical and Electronics Engineers, Inc; 1985.

## Examples

The following example uses the IEEERemainder method to calculate the remainders of two division operations between a Double variable's maximum value and 2 and 3, respectively. The result is then printed to the console.

```
// This example demonstrates Math.IEEERemainder()
using System;

class Example
{
public static void Demo(System.Windows.Controls.TextBlock outputBlock)
{
double doubleResult;
double divisor;

String str1 = "The IEEE remainder of {0:e}/{1:f} is {2:e}";
divisor = 2.0;
outputBlock.Text += "\nDivide two double-precision floating-point values:" + "\n";
doubleResult = Math.IEEERemainder(Double.MaxValue, divisor);
outputBlock.Text += "1) ";
outputBlock.Text += String.Format(str1, Double.MaxValue, divisor, doubleResult) + "\n";

divisor = 3.0;
doubleResult = Math.IEEERemainder(Double.MaxValue, divisor);
outputBlock.Text += "2) ";
outputBlock.Text += String.Format(str1, Double.MaxValue, divisor, doubleResult) + "\n";
outputBlock.Text += "Note that two positive numbers can yield a negative remainder." + "\n";
}
}
/*
This example produces the following results:

Divide two double-precision floating-point values:
1) The IEEE remainder of 1.797693e+308/2.00 is 0.000000e+000
2) The IEEE remainder of 1.797693e+308/3.00 is -1.000000e+000
Note that two positive numbers can yield a negative remainder.

*/

```

## Version Information

#### Silverlight

Supported in: 5, 4, 3

#### Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

#### XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

## Platforms

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