t^3-4t^2+3t-1=0结果?
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t^3-4t^2+3t-1=0结果?t^3-4t^2+3t-1=0结果?t^3-4t^2+3t-1=0结果?用MATLAB可以求得它的3个解,1个实数解,2个复数解,t^3-4t^2+3t-1=0>>
t^3-4t^2+3t-1=0结果?
t^3-4t^2+3t-1=0
结果?
t^3-4t^2+3t-1=0结果?
用MATLAB可以求得它的3个解, 1个实数解,2个复数解, t^3-4t^2+3t-1=0 >> syms t; >> solve(t^3-4*t^2+3*t-1,t) ans = [ 1/6*(188+12*93^(1/2))^(1/3)+14/3/(188+12*93^(1/2))^(1/3)+4/3] [ -1/12*(188+12*93^(1/2))^(1/3)-7/3/(188+12*93^(1/2))^(1/3)+4/3+1/2*i*3^(1/2)*(1/6*(188+12*93^(1/2))^(1/3)-14/3/(188+12*93^(1/2))^(1/3))] [ -1/12*(188+12*93^(1/2))^(1/3)-7/3/(188+12*93^(1/2))^(1/3)+4/3-1/2*i*3^(1/2)*(1/6*(188+12*93^(1/2))^(1/3)-14/3/(188+12*93^(1/2))^(1/3))] >> numeric(ans) ans = 3.1479 0.4261 + 0.3690i 0.4261 - 0.3690i >>
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