matlab用符号函数法求解方程at2+b*t+c=0.

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matlab用符号函数法求解方程at2+b*t+c=0.matlab用符号函数法求解方程at2+b*t+c=0.matlab用符号函数法求解方程at2+b*t+c=0.>>solve(''a*t^2+b

matlab用符号函数法求解方程at2+b*t+c=0.
matlab用符号函数法求解方程at2+b*t+c=0.

matlab用符号函数法求解方程at2+b*t+c=0.
>> solve('a*t^2+b*t+c')
ans =
-(b + (b^2 - 4*a*c)^(1/2))/(2*a)
-(b - (b^2 - 4*a*c)^(1/2))/(2*a)

solve('at^2+b*t+c')