Chemical Equilibrium Problem    |POLVER05_1
f(x1) = x1+x4-3   #
f(x2) = 2*x1+x2+x4+x7+x8+x9+2*x10-R   #
f(x3) = 2*x2+2*x5+x6+x7-8   #
f(x4) = 2*x3+x5-4*R   #
f(x5) = x1*x5-0.193*x2*x4   #
f(x6) = x6*sqrt(x2)-0.002597*sqrt(x2*x4*xs)   #
f(x7) = x7*sqrt(x4)-0.003448*sqrt(x1*x4*xs)   #
f(x8) = x8*x4-1.799e-5*x2*xs   #
f(x9) = x9*x4-0.0002155*x1*sqrt(x3*xs)   #
f(x10) = x10*x4^2-3.846e-5*x4^2*xs   #
R = 40   #
xs = x1+x2+x3+x4+x5+x6+x7+x8+x9+x10   #
x1(0)=2
x2(0)=5
x3(0)=80
x4(0)=1
x5(0)=0
x6(0)=0
x7(0)=0
x8(0)=0
x9(0)=20
x10(0)=5