《文明4》科研计算公式

Difficulty, Map Size, and Speed Modifiers难度、地图大小和速度修正
Difficulty Modifiers难度修正
0.70 = Settler
0.80 = Chieftain
0.90 = Warlord
1.00 = Noble
1.10 = Prince
1.15 = Monarch
1.20 = Emperor
1.25 = Immortal
1.30 = Deity
Map Size Modifiers地图大小修正
1.10 = Duel
1.20 = Tiny
1.30 = Small
1.40 = Standard
1.50 = Large
1.60 = Huge
Game Speed Modifiers游戏速度修正
0.67 = Quick
1.00 = Normal
1.50 = Epic
Additional Modifier for knowing 1 more civilization who has the tech out of....一个有联系且掌握科技的文明修正表
2 Starting Civilizations = 0.15
3 Starting Civilizations = 0.10
4 Starting Civilizations = 0.075
5 Starting Civilizations = 0.06
6 Starting Civilizations = 0.05
7 Starting Civilizations = 0.0428...
8 Starting Civilizations = 0.0375
9 Starting Civilizations = 0.0333...
10 Starting Civilizations = 0.03
11 Starting Civilizations = 0.02727...
12 Starting Civilizations = 0.025
13 Starting Civilizations = 0.0230769...
14 Starting Civilizations = 0.0214...
15 Starting Civilizations = 0.02
16 Starting Civilizations = 0.01875
17 Starting Civilizations = 0.017647...
18 Starting Civilizations = 0.01666....
Thanks to感谢
-Zombie69, Roland Johanson, and kryszcztov for suggesting ways to improve and/or clarify the article（对文章的建议和改进）
-DaviddesJ for suggesting repercussion #5.（影响5）
-Roland Johanson for suggesting repercussion #6.（影响6）
-Arthog for his idea about dead civilizations possibly contributing to the modifier which led to repercussion #8 and for providing a save file to test the idea on.（假设灭亡文明对科研的贡献、提供进度、并导致影响8的确定）