"I want to learn the third move of the Nine Star Moves, Grazing Shot," said Sheila.
"Okay." Ask said, "How much do you know about the Nine Stars?"
"Zero," Sheila said honestly.
When in Constantinople, Ask had trained everyone in the team in the Nine Stars Styles, but unfortunately no one had learned it - everyone felt that the math was too difficult.
The young Empress Theodora had not joined at that time.
"Are you familiar with mathematics?" Ask asked. "Are you familiar with polar equations and calculus?"
"I know a little bit." Sheila asked in surprise, "Do I need to know math to learn the Nine Star Styles?"
"Otherwise, why is it called geometric swordsmanship?" Ask smiled and said, "Do you still want to learn it?"
"Learn." Sheila said.
"For most long-range weapons, their shooting trajectory can be considered a straight line." Ask drew out his long sword. "Imagine that there is someone in front of you shooting at you. Then the shooting trajectory will be a straight line in the air."
“You can avoid this straight line, but that means you are restricted by it. If the straight lines continue to increase, two, three… until all the lines are tightly gathered together to form a flawless cage, you will be locked in the cage.”
"So what you do is, you cut through those lines."
"Cut it off?" Sheila asked.
"It's not about cutting off, it's about slicing." Ask said, "Don't forget that they are not ordinary lines, but are actually made up of countless moving points. What you need to do is to use the sword to break all the moving points in the shortest time and along the shortest path, and the calculation process is first the line and then the point. This involves dimensionality reduction, which requires the use of derivatives and calculus techniques..."
He listed dozens of basic formulas and asked Sheila to write them down: "These formulas are the basis of your calculations. However, in battle, mental arithmetic and calculations are required, so you will need nearly a thousand auxiliary formulas to help you calculate."
"Nearly a thousand? So many!" Silla was immediately surprised.
“You don’t need to remember all the formulas,” Askew said, “but the more you remember, the faster and more accurate your calculations will be.”
On the other hand, the training task of adapting the girls to gun warfare has been handed over to Mier by Ask.
"The commander has asked Alfred to clear out the trenches nearby that are not necessary for the war. They will be used as our war adaptation site for the next few days," Mier said. "They will be used to train everyone on how to dodge shooting."
"Can I ask?" Medea suddenly felt a subtle malice, "What is the specific training plan?"
"It's very simple." Mi'er said, "Your goal is to enter the trench from that position and then come out from this end. In the process, you can use any extraordinary abilities except attacking me."
"I will not enter the trenches, but I will patrol nearby. If you are exposed to my sight, I will shoot you. The ammunition is a special rubber anti-explosion bullet containing a special dye."
"Those who are hit by ammunition will be killed, and they need to leave the trench immediately, return to the starting point and start again," Mi'er introduced.
Well, it doesn't sound suspicious, so what was that malicious intent just now