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 Author Comment/Response Bill Simpson 02/15/13 10:25pm Mathematica is FANATIC about correct placement of {} and similar details. In[1]:= Solve[{a^2+b^2==c^2, d^2+e^2==f^2, a+b==x, b+e==y},{a,b,d,e}] Out[1]= {{d -> -(Sqrt[-c^2 + 2*f^2 + x*Sqrt[2*c^2 - x^2] + 2*x*y - 2*Sqrt[2*c^2 - x^2]*y - 2*y^2]/Sqrt[2]), a -> x/2 + Sqrt[2*c^2 - x^2]/2, e -> (-x + Sqrt[2*c^2 - x^2] + 2*y)/2, b -> (x - Sqrt[2*c^2 - x^2])/2}, {d -> Sqrt[-c^2 + 2*f^2 + x*Sqrt[2*c^2 - x^2] + 2*x*y - 2*Sqrt[2*c^2 - x^2]*y - 2*y^2]/Sqrt[2], a -> x/2 + Sqrt[2*c^2 - x^2]/2, e -> (-x + Sqrt[2*c^2 - x^2] + 2*y)/2, b -> (x - Sqrt[2*c^2 - x^2])/2}, {d -> -(Sqrt[-c^2 + 2*f^2 - x*Sqrt[2*c^2 - x^2] + 2*x*y + 2*Sqrt[2*c^2 - x^2]*y - 2*y^2]/Sqrt[2]), a -> (x - Sqrt[2*c^2 - x^2])/2, e -> (-x - Sqrt[2*c^2 - x^2] + 2*y)/2, b -> (x + Sqrt[2*c^2 - x^2])/2}, {d -> Sqrt[-c^2 + 2*f^2 - x*Sqrt[2*c^2 - x^2] + 2*x*y + 2*Sqrt[2*c^2 - x^2]*y - 2*y^2]/Sqrt[2], a -> (x - Sqrt[2*c^2 - x^2])/2, e -> (-x - Sqrt[2*c^2 - x^2] + 2*y)/2, b -> (x + Sqrt[2*c^2 - x^2])/2}} Or In[2]:= Reduce[{a^2+b^2==c^2, d^2+e^2==f^2, a+b==x, b+e==y},{a,b,d,e}] Out[2]= (a == (x - Sqrt[2*c^2 - x^2])/2 || a == (x + Sqrt[2*c^2 - x^2])/2) && b == -a + x && (d == -(Sqrt[-c^2 + 2*f^2 + 2*a*x - x^2 - 4*a*y + 4*x*y - 2*y^2]/Sqrt[2]) || d == Sqrt[-c^2 + 2*f^2 + 2*a*x - x^2 - 4*a*y + 4*x*y - 2*y^2]/Sqrt[2]) && e == a - x + y URL: ,

 Subject (listing for 'Solve Equations running and running..') Author Date Posted Solve Equations running and running.. KeRo 02/15/13 11:06am Re: Solve Equations running and running.. Bill 02/15/13 5:41pm Re: Solve Equations running and running.. Bill Simpson 02/15/13 10:25pm Re: Solve Equations running and running.. KeRo 02/18/13 03:20am
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