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[ÇóÖú] matlab Çó½â·ÇÏßÐÔ·½³Ì×é Å£¶Ù½â·¨

function Y=f(x,y,z)
Y=[x^2+y^2+z^2-1;
    2*x^2+y^2-4*z;
    3*x^2-4*y+z^2];


function y=JF(x,y,z)
f1='x^2+y^2+z^2-1';
f2='2*x^2+y^2-4*z';
f3='3*x^2-4*y+z^2';
df1x=diff(sym(f1),'x');
df1y=diff(sym(f1),'y');
df1z=diff(sym(f1),'z');
df2x=diff(sym(f2),'x');
df2y=diff(sym(f2),'y');
df2z=diff(sym(f2),'z');
df3x=diff(sym(f3),'x');
df3y=diff(sym(f3),'y');
df3z=diff(sym(f3),'z');
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