Читать книгу Computer Aided Design and Manufacturing - Zhuming Bi - Страница 54

Example 2.5

Оглавление

To use the Euler–Poincare Law to justify the validity of simple objects in the first column of Table 2.7.

Table 2.7 Examples of simple objects.

Example F E V F − E + V = 2
6 12 8 6 − 12 + 8 ≡ 2
7 12 7 7 − 12 + 7 ≡ 2
18 48 32 18 − 48 + 32 ≡ 2
3 3 2 3 − 3 + 2 ≡ 2
2 2 2 2 − 2 + 2 ≡ 2
2 2 2 2 − 2 + 2 ≡ 2
Computer Aided Design and Manufacturing

Подняться наверх