chbpnt.m

演示matlab曲线拟和与插直的基本方法

% CHBPNT   揔愗側僨乕僞僒僀僩丄偡側傢偪丄Chebyshev-Demko揰
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% CHBPNT(T,K) 偼丄愡揰楍 T 偵懳偟偰丄K師偺Chebyshev僗僾儔僀儞偺抂揰傪
% 弌椡偟傑偡丅偙傟偼僗僾儔僀儞嬻娫 S_{K,T} 偐傜偺曗娫偵懳偟偰丄嬌傔偰
% 揔愗側揰偱偡丅偝傜偵丄僆僾僔儑儞偱丄Chebyshev僗僾儔僀儞帺恎丄偮傑傝丄
% 嵟屻偺抂抣偑1偵摍偟偔側傞傛偆偵惓婯壔偝傟偨丄S_{K,T} 偵偍偄偰嵟戝偺
% 怳摦傪傕偮僗僾儔僀儞傪弌椡偟傑偡丅
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% 僗僾儔僀儞偼丄愨懳抣偺嬌抣偺嵟戝偲嵟彫偺憡懳揑側嵎偑梌偊傜傟偨 TOL 
% 傎偳戝偒偔側偄偙偲傪昁梫偲偝傟傞Remes傾儖僑儕僘儉偵傛傝寁嶼偝傟傑偡丅
% TOL 偺僨僼僅儖僩偺抣偼丄.001偱偡丅
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% 偨偲偊偽丄偮偓偺愡揰楍
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%      k = 4; n = 10; t = augknt(((0:n)/n).^8,k);
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% 偲側傞丄僉儏乕價僢僋僗僾儔僀儞偵傛傝丄嬫娫 [0 .. 1] 忋偱暯曽崻偺娭悢傪
% 嬤帡偡傞応崌丄 摿掕偺僗僾儔僀儞嬻娫偐傜偺暯曽崻偺娭悢傊偺揔愗側嬤帡偼丄
% 岆嵎偺愙嬤偟偨摍怳摦偐傜傕暘偐傞傛偆偵丄師幃偵傛偭偰梌偊傜傟傑偡丅
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%      x = chbpnt(t,k); sp = spapi(t,x,sqrt(x));
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% 嶲峫 CHEBDEM, AVEKNT.


%   Copyright 1987-2004 C. de Boor and The MathWorks, Inc.