E. Interpolation (B-spline interpolation)

Functions
Sub	Banfac (N As Long, Kl As Long, Ku As Long, Ab() As Double, Info As Long)
	LU factorization of banded coefficient matrix of system of linear equations (support routine for Bint4 and Bintk)
Sub	Banslv (N As Long, Kl As Long, Ku As Long, Ab() As Double, B() As Double, Info As Long)
	Solution of LU factorized system of linear equations (support routine for Bint4 and Bintk)
Sub	Bint4 (X() As Double, Y() As Double, Ndata As Long, Ibcl As Long, Ibcr As Long, Fbcl As Double, Fbcr As Double, Kntopt As Long, T() As Double, Bcoef() As Double, N As Long, K As Long, Info As Long)
	B-representation of the cubic spline interpolation
Sub	Bintk (X() As Double, Y() As Double, T() As Double, N As Long, K As Long, Bcoef() As Double, Q() As Double, Info As Long)
	B-representation of the spline interpolation of order k
Sub	Bspldr (T() As Double, A() As Double, N As Long, K As Long, Nderiv As Long, Ad() As Double, Info As Long)
	Construct a divided difference table from B-representation for derivative calculation by Bsplev
Sub	Bsplev (T() As Double, Ad() As Double, N As Long, K As Long, Nderiv As Long, X As Double, Inev As Long, Svalue() As Double, Info As Long)
	Evaluation of function and derivative values for B-representation of B-spline
Sub	Bsplpp (T() As Double, A() As Double, N As Long, K As Long, C() As Double, Xi() As Double, Lxi As Long, Info As Long)
	B-representation to PP (piecewise polynomial) form of B-spline conversion
Sub	Bsplvd (T() As Double, K As Long, Nderiv As Long, X As Double, Ileft As Long, Vnikx() As Double, Info As Long)
	Compute the value and the derivatives of B-spline basis functions
Sub	Bsplvn (T() As Double, Jhigh As Long, K As Long, Index As Long, X As Double, Ileft As Long, Vnikx() As Double, Info As Long)
	Compute the value of B-spline basis functions
Function	Bvalue (T() As Double, A() As Double, N As Long, K As Long, Ideriv As Long, X As Double, Inbv As Long, Info As Long) As Double
	Evaluation of function or derivative value for B-representation of B-spline
Sub	Interv (Xt() As Double, Lxt As Long, X As Double, Ilo As Long, Ileft As Long, Info As Long)
	Compute Ileft for the input to Bsplvd and Bsplvn
Function	Ppvalu (C() As Double, Xi() As Double, Lxi As Long, K As Long, Ideriv As Long, X As Double, Inppv As Long, Info As Long) As Double
	Evaluation of function or derivative value for PP (piecewise polynomial) form of B-spline

Detailed Description

This is the group of E. Interpolation (B-spline interpolation).