eqauttons solveing non linear why i am geting this error
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Bader Herzallah
on 7 Apr 2022
Commented: Bader Herzallah
on 7 Apr 2022
[x,y] = solve([x + y == 1000 (0.4818*10.^-7)*x.^4 - (0.9089*10.^-4)*x.^3 + (0.6842*10.^-1)*x.^2 - (0.2106*10.^2)*x +9860 == (0.9592*10.^-7)*y.^4 - (0.7811*10.^-4)*y.^3 + (0.2625*10.^-1)*y.^2 - (0.2189*10)*y +9003],[x,y])
Error using sym/solve>getEqns
Input argument contains an empty equation or variable.
Error in sym/solve (line 226)
[eqns,vars,options] = getEqns(varargin{:});
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Accepted Answer
Walter Roberson
on 7 Apr 2022
syms x y
eqn = [x + y == 1000,0.4818*10^-7*x^4 - 0.9089*10^-4 + 0.6842*10^-1*x^2 - 0.2106*10^2*x + 9860 == 0.9592*10^-7*y^4 - 0.7811*10^-4*y^3 + 0.2625*10^-1*y^2 - 0.2189*10*y + 9003]
sol = solve(eqn, [x y], 'MaxDegree', 4)
sol.x
sol.y
vpa(sol.x)
vpa(sol.y)
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