數(shù)值分析函數(shù)擬合matlab代碼.doc

第一題MATLAB代碼用SPLINE作圖XI0204060810YI098092081064038X10012Y1NEWTON3XI,YI,X源代碼見M文件Y2SPLINEXI,YI,XPLOTXI,YI, O ,X,Y1, R ,X,Y2, K 用CSAPE作圖XI0204060810YI098092081064038X10012Y1NEWTON3XI,YI,X源代碼見M文件PPCSAPEXI,YI, VARIATIONAL Y2PPVALPP,XPLOTXI,YI, O ,X,Y1, R ,X,Y2, K 第二題MATLAB代碼Y1ZEROS1,11X11021FORI111,P1/125X1I2Y1IPENDX10011YMLANGUAGEX1,Y1,XYNSPLINEX1,Y1,XY2ZEROS1,21X21011FORI121,P1/125X2I2Y2IPENDX10011YILANGUAGEX2,Y2,XYJSPLINEX2,Y2,XFIGURE1PLOTX1,Y1, O ,X,YM, R ,X,YN, K FIGURE2PLOTX2,Y2, O ,X,YI, R ,X,YJ, K 第三題MATLAB代碼用SPLINE進(jìn)行插值X101491625364964Y1012345678X00164YMLANGUAGEX1,Y1,XYNSPLINEX1,Y1,XFIGURE1PLOTX1,Y1, O ,X,YM, K ,X,YN, R 用SCAPE用第一邊界條件進(jìn)行插值X101491625364964Y1012345678X00164YMLANGUAGEX1,Y1,XPPCSAPEX1,Y1, COMPLETE ,02,1YNPPVALPP,XFIGURE1PLOTX1,Y1, O ,X,YM, K ,X,YN, R 結(jié)論064三次樣條插值精確01多項(xiàng)式插值精確第三章第一題MATLAB代碼YZEROS1,11X1021FORI111,P1/125XI2YIPENDAPOLYFITX,Y,3Y1POLY2STRA, X P110021U1POLYVALA,P1PLOTP1,U1,X,Y, O Y1Y115271X338235X232599X10023第二題MATLAB代碼X00010203050810Y10041050061091202246A1POLYFITX,Y,3A2POLYFITX,Y,4用YAEXPBX擬合ULOGYA3POLYFITX,U,1MA31NA32AEXPNP10500115U3AEXPMP1U1POLYVALA1,P1U2POLYVALA2,P1PLOTP1,U1, C ,P1,U2, R ,P1,U3, K ,X,Y, O