A NEW LIBRARY OF SUBROUTINES FOR CALCULATING SMOOTHING SPLINES

Authors
  1. Hally, D.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
A new subroutine library has been developed to supplement the IMSL and BSPLIN routines in the realm of smoothing splines. It is not self-contained, making frequent use of subroutines from the BSPLIN library. The new subroutines offer several advantages. (1) The order of the spline may be picked by the user. (2) The second derivative of the spline is not constrained to be zero at its end-points. (3) The user of the new subroutines has freedom to choose the number and positions of the knots of the spline. (4) The new subroutines have, as input, an extra set of weights which control the stiffness of the spline between earch pair of knots. The new subroutines were initially developed for use in ship hull approximation for the calculation of boundary layer growth on the hull. For this calculation one needs splines whose second derivatives are very well behaved. TRUNCATED
Report Number
DREA-TM-85-205 — Technical Memorandum
Date of publication
15 Jun 1985
Number of Pages
74
DSTKIM No
85-02808
CANDIS No
47602
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: