[討論] 解聯立方程
eq1=' 1 = 116*(Y/100)^(1/3)-16';
eq2=' 2 = 500*( (X/98.07)^(1/3) - (Y/100)^(1/3) )';
eq3=' 3 = 200*( (Y/100)^(1/3) - (Z/118.22)^(1/3) )';
s=solve(eq1,eq2,eq3);
s.X; s.Y; s.Z;
這樣解沒問題
但是我用另一種形式寫：
L=1; a=2; b=3;
eq1=' L = 116*(Y/100)^(1/3)-16';
eq2=' a = 500*( (X/98.07)^(1/3) - (Y/100)^(1/3) )';
eq3=' b = 200*( (Y/100)^(1/3) - (Z/118.22)^(1/3) )';
s=solve(eq1,eq2,eq3);
s.X; s.Y; s.Z;
就會出現 ??? Reference to non-existent field 'X'. 的錯誤訊息
想請問各位板友該如何修改呢？
謝謝^^"
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