E3a3. Quadrature involving fitted functions

Functions
Sub	Bfqad (F As LongPtr, T() As Double, Bcoef() As Double, N As Long, K As Long, Id As Long, X1 As Double, X2 As Double, Tol As Double, Quad As Double, Info As Long)
	Integral of product of arbitrary function and B-representation of B-spline
Sub	Bfqad_r (T() As Double, Bcoef() As Double, N As Long, K As Long, Id As Long, X1 As Double, X2 As Double, Tol As Double, Quad As Double, Info As Long, XX As Double, YY As Double, IRev As Long)
	Integral of product of arbitrary function and B-representation of B-spline (reverse communication version)
Sub	Bsqad (T() As Double, Bcoef() As Double, N As Long, K As Long, X1 As Double, X2 As Double, Bquad As Double, Info As Long)
	Integral of B-representation of B-spline
Function	Pchia (N As Long, X() As Double, F() As Double, D() As Double, A As Double, B As Double, Info As Long, Optional Skip As Boolean=False, Optional Idxfd As Long=0, Optional Incfd As Long=1) As Double
	Integral of piecewise cubic Hermite / cubic spline function
Function	Pchid (N As Long, X() As Double, F() As Double, D() As Double, IA As Long, IB As Long, Info As Long, Optional Skip As Boolean=False, Optional Idxfd As Long=0, Optional Incfd As Long=1) As Double
	Integral of piecewise cubic Hermite / cubic spline function (over an interval whose endpoints are data points)
Sub	Pfqad (F As LongPtr, C() As Double, Xi() As Double, Lxi As Long, K As Long, Id As Long, X1 As Double, X2 As Double, Tol As Double, Quad As Double, Info As Long)
	Integral of product of arbitrary function and PP (piecewise polynomial) form of B-spline
Sub	Pfqad_r (C() As Double, Xi() As Double, Lxi As Long, K As Long, Id As Long, X1 As Double, X2 As Double, Tol As Double, Quad As Double, Info As Long, XX As Double, YY As Double, IRev As Long)
	Integral of product of arbitrary function and PP (piecewise polynomial) form of B-spline (reverse communication version)
Sub	Ppqad (C() As Double, Xi() As Double, Lxi As Long, K As Long, X1 As Double, X2 As Double, Pquad As Double, Info As Long)
	Integral of PP (piecewise polynomial) form of B-spline

Detailed Description

This is the group of E3a3. Quadrature involving fitted functions.