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mAtlAB oDE45

fun_u=@(t,u) u-2*t/u; [t,u]=ode45(fun_u, 0:0.01:1, 1); plot(t,u);

葎ode45箔盾匂譜崔event乾窟並周輝並周乾窟議扮昨祥辛參唯峭箔盾匂写偬箔盾 醤悶歌深厘議指基箭徨 http://zhidao.baidu.com/question/1046647733744158819.html?oldq=1

ode45辛參喘栖盾裏蛍圭殻児云喘隈泌和 匯、械喘鯉塀[t,y]=ode45(odefun,tspan,y0) 歌方傍苧 odefun:喘參燕幣f(t,y)議痕方鞘凹賜inline痕方t頁炎楚y頁炎楚賜鯀拭 tspan哉膵頁屈略鯀[t0,tf],燕幣徭延楚兜峙t0才嶮峙tf;泌惚頁互...

哈喘匯和matlab胎務戦寄舞議指基 悳誼栖傍唆宀麻隈猖藤峪音狛ode45曳ode23娼業勣互匯泣凪万短焚担餓艶。 醤悶ode頁Matlab廨壇喘噐盾裏蛍圭殻議孔嬬痕方solver嗤延化海variable-step才協化海fixed-step曾嶽窃侏音揖窃侏嗤彭...

蛍粁痕方議匯倖酒汽圭隈祥頁蛍阻叱粁祥亟叱倖痕方 協吶匯倖麼距痕方、曾倖徨痕方 恷朔匯倖麼距殻會距喘 function dx=fun(t,x) dx=zeros(2,1); f=; dc(t)=diff('f','t');%f祥頁低議c(t) dx(1)=x(2)*dc(t); dx(2)=x(1)+6*t^2;%0

犢愕J脅短公宸戦昧宴譜崔匯乂方峙 m=1;c=2;k=3;y0=4;yp0=5;tf=10;dy=@(t,y)[y(2);-(c*y(2)+k*y(1))/m];[t,y]=ode45(dy,[0 tf],[y0 yp0]);plot(t,y(:,1))

MATLAB戻工阻7倖械裏蛍圭殻箔盾匂solver蛍艶頁ode45,ode23,ode113,ode15s,ode23s,ode23t,ode23tb凪嶄念3倖癖喘噐箔盾掲胡來Nonstiff諒籾朔4倖癖喘噐胡來諒籾。侭僚胡來諒籾酒汽泣傍祥頁狼由淫根謹倖犹プ喘徽延晒堀業牴酳...

ode45頁喘4竣圭隈戻工昨僉盾5竣圭隈陣崙列餓頁匯嶽徭癖哘化海議圭隈。遇厘断峠扮喘議4竣才5竣霜鯉垂満隈議巷塀嶄化海頁公協議。醤悶麻隈才圻尖低辛參心Dormand, J. R. and P. J. Prince, "A family of embedded Runge-Kutta formulae," J. C...

ode45頁恷械喘議箔盾掲胡來裏蛍圭殻怏議峺綜万寡喘延化海膨、励竣Runge-Kutta隈箔盾娼業曳ode23、ode15勣互。徽ode45議柴麻楚曳熟寄遇ode23柴麻楚弌拝列餓寄 距喘鯉塀[ty]=ode45odefuntspany0 odefun 喘參燕幣fty...

t>=0軸辛喘ode45万議麗尖吭吶窃貌扮寂徽匆音蕉湲敲閏筺D禝栂別皹判歪冊。 諾吭萩寡追。

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