f(x) = ax2+bx+c
g(x) = dx2+ex+f
Intersection 2
b2−2be+e2−4(ac−af−dc+df)>0
Intersection 1
b2−2be+e2−4(ac−af−dc+df)=0
a≧d
bd=ae
b2d−e2a−4a(cd−df)=0
Intersection 0
a≧d
b2d−e2a−4a(cd−df)>0
b2−2be+e2−4(ac−af−dc+df)<0
T.theodor 2022.10.16.
f(x) = ax2+bx+c
g(x) = dx2+ex+f
Intersection 2
b2−2be+e2−4(ac−af−dc+df)>0
Intersection 1
b2−2be+e2−4(ac−af−dc+df)=0
a≧d
bd=ae
b2d−e2a−4a(cd−df)=0
Intersection 0
a≧d
b2d−e2a−4a(cd−df)>0
b2−2be+e2−4(ac−af−dc+df)<0
T.theodor 2022.10.16.