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BraceVolatilityFunction Class Reference

List of all members.

Public Methods

 BraceVolatilityFunction (double a, double b, double c, double d)
 Default constructor to set coeffs.

 ~BraceVolatilityFunction ()
 Destructor.

double operator() (double t)
 operator to evaluate the function at given time to maturity.

double da (double t)
 First derivative with respect to a.

double db (double t)
 First derivative with respect to b.

double dc (double t)
 First derivative with respect to c.

double dd (double t)
 First derivative with respect to d.


Private Attributes

double a_
 coefficients of the function.

double b_
 coefficients of the function.

double c_
 coefficients of the function.

double d_
 coefficients of the function.


Detailed Description

Brace volatility term structure function ( similar to Nelson-Siegel function for zero rate)

sigma(t) = (a+b*t)*exp(-c*t) + d

Definition at line 52 of file CurveFitting.cpp.


The documentation for this class was generated from the following file:
Generated at Wed Nov 7 16:26:00 2001 for Optimization by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001