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"DEMO FILE FOR MNEWTON v1.1"$
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mnewton([x1+3*log(x1)-x2^2, 2*x1^2-x1*x2-5*x1+1], [x1, x2], [5, 5]);
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mnewton([2*a^a-5],[a],[1]);
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mnewton([x^2+y^2+z^2-1, 2*x^2+y^2-4*z, 3*x^2-4*y+z^2], [x, y, z], [0.5, 0.5, 0.5]);
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mnewton([2*3^X-Y/X-5, X+2^Y-4], [X, Y], [2, 2]);