%非精確直線搜索Armijo-Goldstein算法

function?x=ArmGold（x0p0）
%x0?-----------------------?初始點坐標
%p0?-----------------------?初始搜索方向
%x?------------------------?最優點坐標（所求點坐標）
g0=Grads（x0）;
f0=objectiveFun（x0）;
if（p0‘*g0）>=?0;
????disp（‘搜索方向已不是下降方向搜索方向改為其負方向！‘?）
????p0?=-p0;
end
t1=0;
t=norm（g0）;
t2=nan;
s1=0.3*（p0‘*g0）;??????????%?系數選擇為?0.3
s2=0.7*（p0‘*g0）;??????????%??1?-?0.3?=?0.7
M0=f0+t*s1;
x=x0+t*p0;
f=objectiveFun（x）;?
while?f>M0
????t2=t;
????t=（t1+t2）/2;
????M0=f0+t*s1;
????x=x0+t*p0;
????f=objectiveFun（x）;
end
M1=f0+t*s2;
while?f????t1=t;
????if?t2????????t=（t1+t2）/2;
????else?
????????t=2*t;
????end
????M0=f0+t*s1;
????x=x0+t*p0;
????f=objectiveFun（x）;
????while?f>M0
????????t2=t;
????????t=（t1+t2）/2;
????????M0=f0+t*s1;
????????x=x0+t*p0;
????????f=objectiveFun（x）;
????end
????M1=f0+t*s2;
end
??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????924??2004-05-19?00:26??matlab代碼\222\共軛梯度法\ArmGold.m

?????文件????????372??2004-05-17?00:51??matlab代碼\222\共軛梯度法\Armijo.m

?????文件???????4943??2004-06-01?17:22??matlab代碼\222\共軛梯度法\ConjGrad.m

?????文件????????286??2004-05-16?15:48??matlab代碼\222\共軛梯度法\Grads.m

?????文件????????540??2004-05-24?19:08??matlab代碼\222\共軛梯度法\LineSearch.m

?????文件???????4955??2004-05-24?20:28??matlab代碼\222\共軛梯度法\main.m

?????文件????????708??2004-05-24?19:07??matlab代碼\222\共軛梯度法\ModifyCoefficient.m

?????文件????????345??2004-05-30?16:00??matlab代碼\222\共軛梯度法\objectiveFun.m

?????文件????????140??2004-05-19?17:59??matlab代碼\222\共軛梯度法\objectiveFun_1.m

?????文件????????716??2004-05-26?10:49??matlab代碼\公軛梯度法\getd.m

?????文件?????????71??2003-05-10?16:22??matlab代碼\公軛梯度法\getdfun.m

?????文件????????156??2004-05-04?10:34??matlab代碼\公軛梯度法\getdgfun.m

?????文件???????1775??2004-05-26?09:51??matlab代碼\公軛梯度法\getdgran.m

?????文件????????222??2004-05-26?10:50??matlab代碼\公軛梯度法\main.m

?????文件????????226??2004-05-04?19:58??matlab代碼\公軛梯度法\s1.m

?????文件????????961??2004-05-04?09:22??matlab代碼\公軛梯度法\s2.m

?????文件??????26488??2004-05-25?14:03??matlab代碼\公軛梯度法\zgh3.fig

?????文件???????6869??2004-05-26?10:19??matlab代碼\公軛梯度法\zgh3.m

?????文件????????108??2004-05-25?14:14??matlab代碼\公軛梯度法\zrf_loop.m

?????文件???????1751??2003-05-10?19:04??matlab代碼\變尺度法\bcd.m

?????文件?????????65??2003-05-10?16:13??matlab代碼\變尺度法\fun.m

?????文件????????148??2003-05-10?19:04??matlab代碼\變尺度法\gfun.m

?????文件????????706??2004-05-26?10:00??matlab代碼\變尺度法\main.m

?????文件????????208??2003-05-10?15:32??matlab代碼\變尺度法\s1.m

?????文件????????949??2003-05-10?18:21??matlab代碼\變尺度法\s2.m

?????文件????????247??2004-05-04?21:51??matlab代碼\方向加速法\fm.m

?????文件????????204??2004-05-04?21:52??matlab代碼\方向加速法\fun.m

?????文件????????493??2004-05-04?21:52??matlab代碼\方向加速法\hh.m

?????文件????????788??2003-05-10?19:40??matlab代碼\方向加速法\main.m

?????文件???????2384??2003-05-10?19:28??matlab代碼\方向加速法\powell.m

............此處省略17個文件信息