spbrk.m

演示matlab曲线拟和与插直的基本方法

% SPBRK   B-宆傑偨偼BB-宆偺峔惉梫慺
%
% [KNOTS,COEFS,N,K,D] = SPBRK(SP) 偼丄SP 撪偺B-宆傪峔惉梫慺偵暘妱偟丄
% 弌椡堷悢偵傛偭偰巜掕偝傟偨傕偺偲摨偠悢傪弌椡偟傑偡丅
%
% OUT1 = SPBRK(SP,PART) 偼丄埲壓偺暥帤楍偺1偮(偺巒傑傝偺僉儍儔僋僞)偱偁傞
% 暥帤楍 PART 偵傛偭偰巜掕偝傟偨峔惉梫慺傪弌椡偟傑偡丅: 
% 'knots' 傑偨偼 't', 'coefs', 'number', 'order', 'dimension', 'interval',
% 'breaks'
%
% PART 偑丄1峴2楍偺峴楍 [A,B] 偺応崌丄抂揰 A 偲 B 傪傕偮嬫娫傊偺 SP 撪偺
% 僗僾儔僀儞偺惂尷/奼挘偑丄摨偠宆偲偟偰弌椡偝傟傑偡丅
%
% [OUT1,...,OUTo] = SPBRK(SP, PART1,...,PARTi) 偼丄o<=i 偺偲偒偵丄j=1:o 
% 偱偺暥帤楍 PARTj 偵傛偭偰巜掕偝傟偨梫慺傪 OUTj 偵弌椡偟傑偡丅
%
% SPBRK(SP) 偼丄壗傕弌椡偟傑偣傫偑丄偡傋偰偺峔惉梫慺傪昞帵偟傑偡丅
%
% 嶲峫 : PPBRK, FNBRK, RSBRK, RPBRK.


%   Copyright 1987-2003 C. de Boor and The MathWorks, Inc.