| tx2−t2 | ||
Ix= | *I | |
| tw2−t2 |
| dtx | [tx2−t2]'[tw2−t2]−[tx2−t2][tw2−t2]' | ||
= | |||
| df | (tw2−t2)2 |
| dtx | [2tx][tw2−t2]−[tx2−t2][0] | ||
= | |||
| df | (tw2−t2)2 |
| dtx | [2t2wx2−2t3x] | ||
= | |||
| df | (tw2−t2)2 |
| dtx | 2t2x(wx−t) | ||
= | |||
| df | (tw2−t2)2 |
| 2t2x(wx−t) | tx2−t2 | ||
*l+ | *0 | ||
| (tw2−t2)2 | tw2−t2 |
| 2t2x(wx−t) | |
*l | |
| (tw2−t2)2 |