y1-y2 |
x1-x2 |
|
e2 |
2 |
e2 |
2 |
y1-y2 |
x1-x2 |
ex1-ex2-a(x1-x2) |
x1-x2 |
ex1-ex2 | ||
|
ex0 |
ex1 |
1-ex2-x1 |
x1-x2 |
1-et |
-t |
et-1 |
t |
et•t-(et-1) |
t2 |
et(t-1)+1 |
t2 |
ex0 |
ex1 |
A.a<b<c | B.c<b<a | C.c<a<b | D.b<a<c |
π |
2 |
a |
3 |
2 |
b |
a |
b |
| ||
4 |
a |
b |
b |
A.0 | B.2 | C.4 | D.8 |
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