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ÇóÖú£¬ÔõÑù°Ñ·ûºÅ±í´ïʽתΪdoubleÐͱí´ïʽ ÎÒÓÃÁËÒÔϳÌÐò£¬µ«×ܸæËßÎÒ³ö´í£º syms x y z1 z2 m=3 n=3 h=0.0003; w=0.0005; a=0.0001 e=h/w %z1=@pp ff=sym(zeros(m,n)) for i=1:m %feval(z1,x,y,i) z1=x.^i+y.^i for j=1:n % z2=@pp %feval(z2,x,y,j) z2=x.^j+y.^j z1x=diff(z1,x) z2x=diff(z2,x) z1y=diff(z1,y) z2y=diff(z2,y) ff(i,j)=e^2*z1x*z2x+z1y*z2y ff(i,j)=char(ff(i,j)) ff(i,j)=strrep(ff(i,j),'*','.*') ff(i,j)=strrep(ff(i,j),'/','./') ff(i,j)=strrep(ff(i,j),'\','.\') ff(i,j)=strrep(ff(i,j),'^','.^') ss=intout(ff(i,j),0,1,0,1) end end ³ö´í£ºWarning: Inputs must be character arrays or cell arrays of strings. > In zzz at 23 ??? Error using ==> strrep Conversion to double from sym is not possible. [ Last edited by luoqiquan on 2009-12-19 at 18:13 ] |
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