先算出最小值的表达式:
f(X)=2X^2+3TX+3T = 2(X^2+3TX/2+3T/2) =2(X+3T/4)^2 - 9T^2/8+3T > = - 9T^2/8+3T
g(T)= - 9T^2/8+3T
取最大值在对称轴的地方
T=-3/(2*(-9/8))=4/3
先算出最小值的表达式:
f(X)=2X^2+3TX+3T = 2(X^2+3TX/2+3T/2) =2(X+3T/4)^2 - 9T^2/8+3T > = - 9T^2/8+3T
g(T)= - 9T^2/8+3T
取最大值在对称轴的地方
T=-3/(2*(-9/8))=4/3