在线时间 0 小时 最后登录 2005-4-13 注册时间 2005-4-8 听众数 0 收听数 0 能力 0 分 体力 66 点 威望 0 点 阅读权限 20 积分 22 相册 0 日志 0 记录 0 帖子 4 主题 2 精华 0 分享 0 好友 0
升级 17.89%
该用户从未签到
<TABLE cellSpacing=1 cellPadding=5 align=center>3 T3 f8 ?. X/ L% h
4 {. g+ i# j7 a8 W! n2 O, J. q
<TR> ^7 R# f+ K# s" R
<TD class=tablebody1 vAlign=top width=*>% ?3 E3 z1 Y2 s# P$ X: W
<BLOCKQUOTE>* S( l0 @/ U/ }- e/ X$ a/ b
<TABLE width="90%" border=0>
9 C$ x7 i4 x) U2 ~
% [# ?, c# M1 k% k7 a' I/ w; v7 R <TR>9 t$ O- }$ V( {: t2 x& t9 Y, z o
<TD width="100%">9 F: X, w8 {. j
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>( O3 t( ^' |! v0 n9 ?
5 l9 {4 G+ ~0 S <TR>
$ P/ m0 a. t' K1 Y3 e, L1 \ <TD width=*>
/ \. K- i2 q) D. D* }1 O2 K <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
g* `7 P! a- y6 G/ x, z1 t! U$ q7 X 1 z, T G4 [) e2 j9 O
<TR>
6 I; X& A0 m" M2 ^: `) z <TD width=*><B>于ode32用法的求助</B></TD>! U8 g" E. ]- N. h6 R
<TD align=right width=60></TD></TR></TABLE></TD></TR></TABLE>
% Z+ F. b: H; n: n8 @. u4 c ! A* ]% a6 ]3 Y+ {
< >在求解常微分方程X"(t)+k^2*X=0的过程中遇到的问题,很是郁闷!!!!!!!</P>+ B, k5 S2 ]) ]5 k' ~3 _
< >1. function xp=harm(t,x);
3 ?2 e6 K$ W" A9 E8 l2 P 2. k=2*pi;
- w4 k) L5 i7 x 3. xp(1)=x (2);3 K: P% o7 e3 q
4. xp(2)=-k*k*x (1);</P>
6 ]6 ^: r L; o/ J/ [% ] < >
; {5 E- V3 k0 a0 J >> [t,x]=ode23(harm,0,1,[0 2*pi])
3 N+ O! W6 C. [% ]& K0 Y" p6 E8 j ??? Input argument 'x' is undefined.</P>
0 s; I3 F( Y h" r < >Error in ==> D:\matlabtest\harm.m
. ~$ m) `" J8 ]9 c9 D On line 3 ==> xp(1)=x(2); </P>
1 _2 L m7 R! W" ^: ? < >总是提示”输入参数X未被定义”,可是很多书上都是这么写的可以求出来树枝解,恳求各位大侠指点!!</P></TD></TR></TABLE></BLOCKQUOTE></TD></TR>$ e, b L: q0 E: t
<TR>
/ T- |* ^2 Q* M0 V2 ^1 c# f <TD class=tablebody1 vAlign=center align=middle width=175><a href="http://www.madio.net/bbs/look_ip.asp?boardid=87&userid=11201&ip=*.*.*.*&action=lookip" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/ip.gif" align=absMiddle border=0></A> 2005-4-12 13:14:36</TD>
* x. K9 @5 @ k2 J) k: F0 n# a; ~ <TD class=tablebody1 vAlign=center width=*>欢迎大家作客“矩阵工作室” 3 x! g8 k% R3 {: G8 X
<TABLE cellSpacing=0 cellPadding=0 width="100%">/ Z5 u: ?! W4 r4 w# r2 m; T3 T
7 H( y. K# b$ g% h3 p9 s
<TR>
# d) I2 X; v) Z* u <TD vAlign=center align=left> </TD>
/ d1 ^0 F9 x* t0 l9 p9 y2 ^' l4 [( @ <TD vAlign=bottom align=right width=200 nowarp><a href="http://www.madio.net/bbs/post.asp?action=edit&BoardID=87&replyID=17564&ID=3856&star=1" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/edit.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/admin_postings.asp?action=复制&BoardID=87&ID=3856&replyID=17564&userid=11201" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/copy.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/admin_postings.asp?action=精华&BoardID=87&ID=3856&replyID=17564&userid=11201" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/jing.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/admin_postings.asp?action=单帖屏蔽&BoardID=87&ID=3856&replyID=17564&userid=11201" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/lockpage.gif" align=absMiddle border=0></A> </TD>
9 V3 R( N# P7 ~) W# P( b* | <TD vAlign=bottom align=right width=4></TD></TR></TABLE></TD></TR></TABLE>
# T; f- r6 K! S8 U0 a- { <SCRIPT language=JavaScript>0 h. b\" q8 \\" l$ o* s\" W+ X
var actioninfo3='单帖屏蔽';document.write (dvbbs_show_topic('17574','87','21101244','','','21101244@sina.com','||||||||||||||||||','','Images/userface/image1.gif','','','','','<P>[t,x]=ode23(\'harm\',0,1,[0,2*pi])</P><P>运行后提示必须返回一个列向量</P>','2005-4-12 15:29:00','face1.gif','*.*.*.*','3856',1,0,11201,2,'新兵训练','32','32','2','2005-4-8','8','58','36','','1',0,'0','level0.gif',4,'2005-4-12 15:25:47','0',1,'tablebody2','1','0','2','0','','0'));+ l\" o+ V. q\" ^$ I
<script> 复制代码
' c! Q8 n: p h4 W- h* ~ <!--帖子浏览主体-->
5 {1 {3 O/ e# I <TABLE cellSpacing=1 cellPadding=5 align=center>
: U. n0 M4 Y: d6 |: w6 P
3 J n. K7 a) L6 y <TR>
7 e! V# L7 J9 ^0 Z3 f <TD class=tablebody2 vAlign=top width=175>% R* u6 [3 X5 q
<TABLE cellSpacing=0 cellPadding=4 width="100%">3 p V9 R& V! {; O: o
# O4 H( k1 i8 u9 y `6 x1 k
<TR>
& T: C1 M) V$ u$ {& o, G9 r <TD vAlign=center width=*> <FONT color=#000066><B>21101244</B></FONT> </TD>
6 A) a* ], z/ L) z* i <TD vAlign=center width=25><IMG src="http://www.madio.net/bbs/Skins/Default/Male.gif"> </TD>
! Q# i- j% z/ q& Z+ V <TD vAlign=center width=16></TD></TR></TABLE> <IMG src="http://www.madio.net/bbs/Images/userface/image1.gif">! q5 a* ?; `; |8 N
# [) d# S7 Z: Y Q </TD>
3 X& ]7 }; X# ]8 }2 X4 E; G <TD class=tablebody2 vAlign=top width=*>% {- c" `1 f: N; z2 @
<TABLE width="100%">
/ D" W! g: j% f' H) p' V
* O' _3 k0 }( q <TR>; g2 B: @) a. ~
<TD width=*><a><IMG src="http://www.madio.net/bbs/Skins/Default/message.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/friendlist.asp?action=addF&myFriend=21101244" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/friend.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/dispuser.asp?id=11201" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/profile.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/query.asp?stype=1&nSearch=3&keyword=21101244&BoardID=87&SearchDate=ALL" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/find.gif" align=absMiddle border=0></A> <a href="mailt21101244@sina.com" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/email.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/post.asp?action=re&BoardID=87&replyID=17574&id=3856&star=1&reply=true" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/reply.gif" align=absMiddle border=0></A> <a href="http://www.madio.net/bbs/post.asp?action=re&BoardID=87&replyID=17574&id=3856&star=1" target="_blank" ><IMG src="http://www.madio.net/bbs/Skins/Default/reply_a.gif" align=absMiddle border=0></A></TD>4 P- f E2 O8 U3 R7 d b
<TD width=80>第 <FONT color=#ff0000>2</FONT> 楼 </TD></TR>& F# g+ Q+ |) t, X5 V+ z
<TR># B6 ?( R# m' u. Z) G" D
<TD colSpan=2 height=1>
( \3 s0 M1 z( i" l# z* S <TABLE cellSpacing=0 cellPadding=0 align=center border=0>- n: g/ Z$ I" ~5 P! B X8 z+ U
" I+ j: k2 u& h* j0 b# ?5 O <TR>$ a: s& x N1 J9 }
<TD></TD></TR></TABLE></TD></TR></TABLE>4 B" C2 s. u( q+ s) Q! n3 b: C
<BLOCKQUOTE>: X+ J% K$ P6 C2 X) e9 W
<TABLE width="90%" border=0>9 Y. c/ j4 [1 G, L" h
2 X9 `* ?8 L0 l% I
<TR>1 o# i8 n" s' T% I( s' P! X) N
<TD width="100%">& ~# x4 F1 s% l1 f# q$ I$ ?$ Q
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>: R/ Z1 @; ^. K$ Z5 Y ~" u
/ K2 n# B) n; }+ o+ C: S$ t* I$ o <TR># o7 y G' x7 }3 y& r
<TD width=*>( z S/ Y% O2 i# F* d
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>/ Z) S) Y, k; W$ e" r4 \
, N$ L9 T* E; l; A4 Y/ |5 A$ W
<TR>2 C, A( s" u- ?1 Q( x
<TD width=*><IMG src="http://www.madio.net/bbs/Skins/Default/topicface/face1.gif" align=absMiddle border=0> </TD>
3 F" u. [7 E9 i5 M$ C( x; |3 w <TD align=right width=60></TD></TR></TABLE></TD></TR></TABLE>
, {2 x; F. ^& w4 O; t* h
* w$ m' Y9 j1 @! \, w3 ? < >[t,x]=ode23('harm',0,1,[0,2*pi])</P> i; T! k) y, f5 _* ]+ v: P
< >运行后提示必须返回一个列向量</P></TD></TR></TABLE></BLOCKQUOTE></TD></TR></TABLE>
zan