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内容简介作者简介 - 科学与工程计算系

内容简介作者简介 - 科学与工程计算系

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[tt,yy]=ginput(5);zoom off<br />

tt<br />

tt =<br />

-2.0032<br />

-0.5415<br />

-0.0072<br />

0.5876<br />

1.6561<br />

图 4.6-2<br />

(4)<br />

[t4,y4,exitflag]=fzero(y,tt(4),[],a,b) %<br />

t4 =<br />

0.5993<br />

y4 =<br />

0<br />

exitflag =<br />

1<br />

(5)<br />

[t3,y3,exitflag]=fzero(y,tt(3),[],a,b)<br />

t3 =<br />

-0.5198<br />

y3 =<br />

-5.5511e-017<br />

exitflag =<br />

1<br />

(6)<br />

op=optimset('fzero')<br />

op =<br />

ActiveConstrTol: []<br />

......<br />

Display: 'notify'<br />

......<br />

TolX: 2.2204e-016<br />

TypicalX: []<br />

op=optimset('tolx',0.01);<br />

op.TolX<br />

ans =<br />

0.0100<br />

(7)<br />

[t4n,y4n,exitflag]=fzero(y,tt(4),op,a,b)<br />

t4n =<br />

0.6042<br />

y4n =<br />

10

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