Read More
Date: 15-5-2022
971
Date: 3-4-2022
1593
Date: 27-3-2022
1619
|
A formula satisfied by all Hamiltonian cycles with nodes. Let be the number of regions inside the circuit with sides, and let be the number of regions outside the circuit with sides. If there are interior diagonals, then there must be regions
(1) |
Any region with sides is bounded by graph edges, so such regions contribute to the total. However, this counts each diagonal twice (and each graph edge only once). Therefore,
(2) |
Take (2) minus (1),
(3) |
Similarly,
(4) |
so
(5) |
|
|
لصحة القلب والأمعاء.. 8 أطعمة لا غنى عنها
|
|
|
|
|
حل سحري لخلايا البيروفسكايت الشمسية.. يرفع كفاءتها إلى 26%
|
|
|
|
|
جامعة الكفيل تحتفي بذكرى ولادة الإمام محمد الجواد (عليه السلام)
|
|
|