编辑“科技”（章节）

== Research progress ==
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In general, ''research time'' can be summarized as the following formula:

<math>\text{Research time} = \sum\frac{\text{Research cost} -\, \text{Partial research done} }{ \text{Monthly research progress} }</math>

Research progress is one of the key elements affecting the time it takes to discover new technologies. It is formulated as follows:

<math>\text{Monthly research progress} = \text{Research resource produced}\, \cdot\, \sum\text{Research speed modifiers}\, +\, \text{min}[\text{Research resource stored},\text{Research resource produced}]</math>

While it is possible for the ''monthly research progress'' to remain constant during the course of researching a certain technology, it is more than likely to fluctuate – for better or for worse – due to consequences of various actions (such as exploration, empire development, expansion, etc.). This, in turn, may increase or decrease the total research time of a given tech.

=== Example ===
The empire from the previous examples (same setup) has just finished debris analysis granting it {{green|+10%}} research progress in {{icon|Armored Torpedoes tech|21px}} Armored Torpedoes along with {{icon|eng|21px}} {{green|+1000}} Engineering research (stored research).

This setup will generate the following monthly research progress:

<math>\text{Monthly research progress} = 24\, \cdot\, (1\, +\, 0.05\, +\, 0.15)\, +\, \text{min}[1000, 24] = 52.8 </math>

Assuming no further changes will impact the above setup, the total research time of the tech would be:

<math>\text{Research time} = \frac{1862\, -\, 1862 \cdot\, 0.1 }{ 52.8 } = \text{31.74 months}</math>

'''Note:''' ''Partial research'' can refer to debris analysis, previous research, event rewards and etc.