MoreMath.ExpMinusOne Method
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MoreMathExpMinusOne Method

Computes ex-1.

Namespace:  Meta.Numerics
Assembly:  Meta.Numerics (in Meta.Numerics.dll) Version: 4.0.5.0 (4.0.5.0)
Syntax
public static double ExpMinusOne(
	double x
)

Parameters

x
Type: SystemDouble
The argument.

Return Value

Type: Double
The value of ex-1.
Remarks

If x is close to 0, then ex is close to 1, and computing ex-1 by Math.Exp(x) - 1.0 will be subject to severe loss of significance due to cancelation. This method maintains full precision for all values of x by switching to a series expansion for values of x near zero.

See Also