/********************************************************************/ /* Copyright (c) 2017 System fugen G.K. and Yuzi Mizuno */ /* All rights reserved. */ /********************************************************************/ // BLE EVALUATES THE JDERIV-TH DERIVATIVE(S), GIVEN B-COEF'S // RCOEF IN COLUMN-WISE OR ROW-WISE. B-COEFFICIENTS RCOEF MAY // BE MULTIPLE OF THE SAME KNOT CONFIGURATION. // ***INPUT* // K,N,T(N+K),RCOEF(IRC,.),IRC,NCD....DESCRIBE B-REP. // ORDER, B-REP DIMENSION, KNOT VECTOR, B-COEF, AND SPACE // DIMENSION. // RCOEF(I,J) 1<=I<=N (J=1...NCD) // X,JDERIV....PARAMETER VALUE AT WHICH DERIVATIVE TO EVALUATE AND // ORDER OF DERIVATIVE. THE DERIVATIVE ORDER JDERIV MUST BE // NON-NEGATIVE, MAY BE ZERO. // ***OUTPUT* // P(NCD) EVALUATED DERIVATIVE(S) // ***NOTE* // BLE IS EASY-TO-USE VERSION OF BLEVAL, AND HAVE BETTER PERFORMANCE // THAN BLEVAL. void ble_( int k,int n,const double *t,const double *rcoef,int irc,int ncd,double x,int jderiv,double *p );