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µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Illusionist

Òø³æ (ÕýʽдÊÖ)

[ÇóÖú] matlabÇó½âɫɢ·½³Ì£¬ÇóÖú

m=1;
h=1.5E-6;
n0=1.504;
n1=2.2899;
n2=1;
K0=5.927E+6;
pi=3.141592653;
K=((K0¡Án1)^2-B^2)^(1/2)
P0=(B^2-(K0¡Án0)^2)^(1/2)
P2=(B^2-(K0¡Án2)^2)^(1/2)
hK=m¡Ápi+artan(P0/K)+artan(P2/K)
¾«È·Çó½âB

ÎÒдµÄ´úÂ룬µ«ÊdzöÏÖһЩÎÊÌâ

clear
clc
m=1;
h=1.5E-6;
n0=1.504;
n1=2.2899;
n2=1;
K0=5.927E+6;
pi=3.141592653;
syms B

K=((K0*n1)^2-B.^2).^0.5;
P0=(B.^2-(K0*n0)^2).^0.5;
P2=(B.^2-(K0*n2)^2).^0.5;
ya=m*pi+atan(P0./K)+atan(P2./K);
f=fsolve(@(B)ya-K.*h,30);


Ìáʾ´íÎóÐÅÏ¢£º
??? Undefined function or method
'full' for input arguments of
type 'sym'.

Error in ==> trustnleqn at 28
Fvec = full(Fvec);

Error in ==> fsolve at 378
    [x,FVAL,JACOB,EXITFLAG,OUTPUT,msgData]=...
   
Error in ==> Untitled at 16
f=fsolve(@(B)ya-K.*h,30);
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

СÁõ8885

ľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Illusionist: ½ð±Ò+5 2012-05-29 11:33:05
fsolveÕâ¾äÀïÃæµÄ³õÖµ30£¬¸Äһϣ¬¿ÉÄÜ»áÓаïÖú¡£¸Ä³É±È½Ï½Ó½üµÄÖµ£¬»á¼Ó¿ì±Æ½üËÙ¶È¡£
3Â¥2012-05-29 10:23:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 13 ¸ö»Ø´ð

xcj3630385

ľ³æ (СÓÐÃûÆø)

³¤½­11ºÅ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Illusionist: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú, ÎÒÊÔһϡ¤¡¤¡¤ 2012-05-29 07:55:47
BÊÇÊý×éÂð£¿ÎÒÏëBÓ¦¸Ã¶¨Òå³É·ûºÅ±äÁ¿¡£
sym£¨¡®B¡¯£©£»ÇÒ²»ÄÜÊÇÊý×é³ËµÄÐÎʽ°É£¿
ÎÒ¾õµÃ·½³Ì»¹ÊÇд³Éº¯ÊýµÄÐÎʽ±È½ÏºÃ¡£
³¤½­11ºÅ
2Â¥2012-05-28 23:30:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lijie169

Í­³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Illusionist: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2012-05-29 11:35:05
CODE:
clear
clc
m=1;
h=1.5E-6;
n0=1.504;
n1=2.2899;
n2=1;
K0=5.927E+6;
f=fsolve(@(B)func(B,K,k0,n0,n1,n2,m,h),30);
н¨Ò»¸öfunc.mµÄÎļþ£¬Ð´ÉÏÈçÏ´úÂë,È»ºóÌõÓÃÉÏÃæµÄ´úÂë
function fb=func(B,K,k0,n0,n1,n2,m,h)
K=((K0*n1)^2-B.^2).^0.5;
P0=(B.^2-(K0*n0)^2).^0.5;
P2=(B.^2-(K0*n2)^2).^0.5;
ya=m*pi+atan(P0./K)+atan(P2./K);
fb=ya-K.*h;
end

4Â¥2012-05-29 10:56:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Illusionist

Òø³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by lijie169 at 2012-05-29 10:56:13
clear
clc
m=1;
h=1.5E-6;
n0=1.504;
n1=2.2899;
n2=1;
K0=5.927E+6;
f=fsolve(@(B)func(B,K,k0,n0,n1,n2,m,h),30);
н¨Ò»¸öfunc.mµÄÎļþ£¬Ð´ÉÏÈçÏ´úÂë,È»ºóÌõÓÃÉÏÃæµÄ´úÂë
function fb=func(B,K,k0, ...

»¹ÊÇÓÐÌáʾ´íÎ󣬳õÖµ¸ÄΪ1,5,30¶¼²»ÐС¤¡¤¡¤
Error in ==> @(B)func(B,K,k0,n0,n1,n2,m,h)


Error in ==> fsolve at 254
            fuser = feval(funfcn{3},x,varargin{:});

Error in ==> Untitled2 at 9
f=fsolve(@(B)func(B,K,k0,n0,n1,n2,m,h),1);
Caused by:
    Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue.
5Â¥2012-05-29 11:34:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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