I need final equation...

2011 6 2
1 个回答
回答已采纳
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I used this equation..
[x,z]=solve('a=(1/1460)*(sqrt((x-d)^2+(z-g)^2)-sqrt((x-c)^2+(z-f)^2))', 'b=(1/1460)*(sqrt((x-e)^2+(z-f)^2)-sqrt((x-c)^2+(z-f)^2))')
espeacially Solve equation.
But.... The problem is... 'Output truncated. Text exceeds maximum line length of 25,000 characters for Command Window display.'
a to f function are 'Random variable', so I need final equation....
How to get the final equation?

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 采纳的回答

Walter Roberson
Walter Roberson 2011-6-2

0 个投票

There are two solutions:
{
x = (1460*(-9685390482496000000*(-(1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + ((1/1460)*c - (1/1460)*d + a)*(-(1/1460)*c + (1/1460)*d + a))*((1/1460)*c - (1/1460)*e + b)*b^2*(-g + f)^2*(-(1/1460)*c + (1/1460)*e + b)*(b^2 - 2*a*b - (1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + (-(1/1460)*d + (1/1460)*e + a)*((1/1460)*d - (1/1460)*e + a)))^(1/2) + (4543718560000*a*d - 4543718560000*a*c)*b^3 + (2131600*c^3 - 2131600*d*c^2 + (9087437120000*a^2 - 2131600*d^2)*c + (-4263200*g*f - 4543718560000*a^2 + 2131600*g^2 + 2131600*f^2)*e - 4263200*f*g*d + 2131600*d*g^2 - 4543718560000*d*a^2 + 2131600*d^3 + 2131600*d*f^2)*b^2 + (-4263200*a*c^3 + (2131600*a*e + 2131600*a*d)*c^2 + (2131600*a*e^2 - 4543718560000*a^3 + (2131600*d^2 + 2131600*f^2 - 4263200*g*f + 2131600*g^2)*a)*c - 2131600*d*a*e^2 + (4543718560000*a^3 + (-2131600*d^2 - 2131600*g^2 - 2131600*f^2 + 4263200*g*f)*a)*e)*b + (-f^2 + 2131600*a^2 - g^2 + 2*g*f)*c^3 + (f^2 - 2131600*a^2 + g^2 - 2*g*f)*e*c^2 + (f^2 - 2131600*a^2 + g^2 - 2*g*f)*e^2*c + (-f^2 + 2131600*a^2 - g^2 + 2*g*f)*e^3) / ((4263200*d^2 + 4263200*c^2 + 4263200*g^2 + 4263200*f^2 - 8526400*d*c - 8526400*g*f)*b^2 - 8526400*a*(-e + c)*(c - d)*b + 4263200*(-e + c)^2*((1/1460)*f - (1/1460)*g + a)*(-(1/1460)*f + (1/1460)*g + a))
z = (1/4263200)*(((1460*d - 1460*c)*b + 1460*a*(-e + c))*(-9685390482496000000*(-(1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + ((1/1460)*c - (1/1460)*d + a)*(-(1/1460)*c + (1/1460)*d + a))*((1/1460)*c - (1/1460)*e + b)*b^2*(-g + f)^2*(-(1/1460)*c + (1/1460)*e + b)*(b^2 - 2*a*b - (1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + (-(1/1460)*d + (1/1460)*e + a)*((1/1460)*d - (1/1460)*e + a)))^(1/2) + 4543718560000*b*(-g + f)*(-a*(-g + f)*b^3 + ((1/1065800)*f*c^2 + ((-(3/2131600)*d - (1/2131600)*e)*f - (1/2131600)*g*(d - e))*c + (1/2131600)*f^3 - (1/2131600)*f^2*g + (a^2 + (1/2131600)*d*e - (1/2131600)*g^2 + (1/2131600)*d^2)*f - (-(1/2131600)*g^2 + (1/2131600)*d*e - (1/2131600)*d^2 + a^2)*g)*b^2 - (3/2131600)*(((1/3)*g + f)*c + (-(4/3)*d + (1/3)*e)*f - (1/3)*g*e)*a*(-e + c)*b + (1/2131600)*(-(1/2131600)*(-g + f)*(d - e)*c - (1/2131600)*f^3 + (1/2131600)*f^2*g + (a^2 + (1/2131600)*d^2 - (1/2131600)*d*e + (1/2131600)*g^2)*f + (-(1/2131600)*g^2 + (1/2131600)*d*e - (1/2131600)*d^2 + a^2)*g)*(-e + c)^2)) / (b*(-g + f)*((f^2 + d^2 - 2*g*f - 2*d*c + c^2 + g^2)*b^2 - 2*a*(-e + c)*(c - d)*b + (-e + c)^2*((1/1460)*f - (1/1460)*g + a)*(-(1/1460)*f + (1/1460)*g + a)))
}
and
{
x = (-1460*(-9685390482496000000*(-(1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + ((1/1460)*c - (1/1460)*d + a)*(-(1/1460)*c + (1/1460)*d + a))*((1/1460)*c - (1/1460)*e + b)*b^2*(-g + f)^2*(-(1/1460)*c + (1/1460)*e + b)*(b^2 - 2*a*b - (1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + (-(1/1460)*d + (1/1460)*e + a)*((1/1460)*d - (1/1460)*e + a)))^(1/2) + (4543718560000*a*d - 4543718560000*a*c)*b^3 + (2131600*c^3 - 2131600*d*c^2 + (9087437120000*a^2 - 2131600*d^2)*c + (-4263200*g*f - 4543718560000*a^2 + 2131600*g^2 + 2131600*f^2)*e - 4263200*f*g*d + 2131600*d*g^2 - 4543718560000*d*a^2 + 2131600*d^3 + 2131600*d*f^2)*b^2 + (-4263200*a*c^3 + (2131600*a*e + 2131600*a*d)*c^2 + (2131600*a*e^2 - 4543718560000*a^3 + (2131600*d^2+2131600*f^2 - 4263200*g*f+2131600*g^2)*a)*c - 2131600*d*a*e^2 + (4543718560000*a^3 + (-2131600*d^2 - 2131600*g^2 - 2131600*f^2 + 4263200*g*f)*a)*e)*b + (-f^2 + 2131600*a^2 - g^2 + 2*g*f)*c^3 + (f^2 - 2131600*a^2 + g^2 - 2*g*f)*e*c^2 + (f^2 - 2131600*a^2 + g^2 - 2*g*f)*e^2*c + (-f^2 + 2131600*a^2 - g^2 + 2*g*f)*e^3) / ((4263200*d^2 + 4263200*c^2 + 4263200*g^2 + 4263200*f^2 - 8526400*d*c - 8526400*g*f)*b^2 - 8526400*a*(-e + c)*(c-d)*b + 4263200*(-e + c)^2*((1/1460)*f - (1/1460)*g + a)*(-(1/1460)*f + (1/1460)*g + a))
z = (1/4263200)*(((-1460*d + 1460*c)*b - 1460*a*(-e + c))*(-9685390482496000000*(-(1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + ((1/1460)*c - (1/1460)*d+a)*(-(1/1460)*c + (1/1460)*d + a))*((1/1460)*c - (1/1460)*e + b)*b^2*(-g + f)^2*(-(1/1460)*c + (1/1460)*e + b)*(b^2 - 2*a*b - (1/2131600)*f^2 + (1/1065800)*g*f - (1/2131600)*g^2 + (-(1/1460)*d + (1/1460)*e + a)*((1/1460)*d - (1/1460)*e + a)))^(1/2) + 4543718560000*b*(-g + f)*(-a*(-g + f)*b^3 + ((1/1065800)*f*c^2 + ((-(3/2131600)*d - (1/2131600)*e)*f - (1/2131600)*g*(d - e))*c + (1/2131600)*f^3 - (1/2131600)*f^2*g + (a^2 + (1/2131600)*d*e - (1/2131600)*g^2 + (1/2131600)*d^2)*f - (-(1/2131600)*g^2 + (1/2131600)*d*e - (1/2131600)*d^2 + a^2)*g)*b^2 - (3/2131600)*(((1/3)*g + f)*c + (-(4/3)*d + (1/3)*e)*f - (1/3)*g*e)*a*(-e + c)*b + (1/2131600)*(-(1/2131600)*(-g + f)*(d - e)*c - (1/2131600)*f^3 + (1/2131600)*f^2*g + (a^2 + (1/2131600)*d^2 - (1/2131600)*d*e + (1/2131600)*g^2)*f + (-(1/2131600)*g^2 + (1/2131600)*d*e - (1/2131600)*d^2 + a^2)*g)*(-e + c)^2))/(b*(-g + f)*((f^2 + d^2 - 2*g*f - 2*d*c + c^2 + g^2)*b^2 - 2*a*(-e + c)*(c - d)*b + (-e + c)^2*((1/1460)*f - (1/1460)*g + a)*(-(1/1460)*f + (1/1460)*g + a)))
}
(Gesh it's tiring to reformat these long expressions for the autowrap!)

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harry
harry 2011-6-2
Thank you~
harry
harry 2011-6-2
Very thanks... And I'm really sorry coz i made a mistake that only one fuction... one more please...
You can read new question

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