//! compute location 2d points and associated
//! first derivatives.
- //! Warning : It used only for C1 or C2 aproximation
+ //! Warning : It used only for C1 or C2 approximation
Standard_EXPORT virtual Standard_Boolean D1 (const Standard_Real Param, gp_Mat& M, gp_Vec& V, gp_Mat& DM, gp_Vec& DV, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d) Standard_OVERRIDE;
//! compute location 2d points and associated
//! first and seconde derivatives.
- //! Warning : It used only for C2 aproximation
+ //! Warning : It used only for C2 approximation
Standard_EXPORT virtual Standard_Boolean D2 (const Standard_Real Param, gp_Mat& M, gp_Vec& V, gp_Mat& DM, gp_Vec& DV, gp_Mat& D2M, gp_Vec& D2V, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d, TColgp_Array1OfVec2d& D2Poles2d) Standard_OVERRIDE;
//! Say if the first restriction is defined in this class.
//! SetValue method
Standard_EXPORT virtual void GetDomain (Standard_Real& First, Standard_Real& Last) const Standard_OVERRIDE;
- //! Is usefull, if (me) have to run numerical
+ //! Is useful, if (me) have to run numerical
//! algorithm to perform D0, D1 or D2
//! The default implementation make nothing.
Standard_EXPORT virtual void SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d) Standard_OVERRIDE;