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3X1^4+X2^2-X3=15
X1^2+X2+X3^3=25
X1^3-X2+X3^2=16


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[ Last edited by sunxiao on 2009-3-9 at 09:00 ]
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sunxiao(½ð±Ò+2,VIP+0):лл²ÎÓ룬³Ùµ½µÄ½±Àø 3-9 09:01
function y=fun(x)
y(1)=3*X(1)^4+X(2)2^2-X(3)-15
y(2)=
y(3)=
y(2)ºÍy(3)Äã×Ô¼ºÐ´°É£¬È»ºó
x=fsolve('fun',[a,b,c])
a,b,cΪ³õÖµ£¬¾Í¿ÉÒÔÁË
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