Chapter 2770

"Although the single valued group differential equation does not account for the top problem, it can not be solved in a short time."

"Qin Luo can't win this time!"

Richard Miller is confident that

Time flies, almost in the blink of an eye has passed several days.

In these days, Qin Luo spent almost all of his time in the Institute of Yanda except the first day.

Under the disdainful efforts of Qin Luo, Zhou Minggang and others, the technology of active orbit change has made great progress.

It happened that day that Denis came to Yanda.

I happened to see Qin Luo.

Denise:???

Isn't Qin Luo supposed to be preparing for the award ceremony?

Why are you suddenly here?

When he saw Qin Luo, he was confused at that time!

"Qin Luo, why are you here? Shouldn't you be studying single valued group differential equations now? " Asked dlinese, frowning.

Yes, according to his script, Qin Luo should be studying differential equations of single valued groups now.

But now he suddenly appears here!

Denise almost didn't believe his eyes.

"Teacher, the differential equation of single value group needs to be studied, but manned spaceflight can't be put down, don't you?" Qin Luo laughed and said, "and Mr. Denise, you may not believe that I have studied the differential equations of single valued groups."

Denise:???

What did he hear?

Qin Luo has completed the demonstration of single valued group differential equation?

I'm not dreaming, am I?

Just at the moment of Qin Luo's voice falling, dreine suddenly froze in place.

Qin Luo has completed the demonstration of single valued group differential equation! He could hardly believe his ears.

How can anyone in the world finish a project in just a few days?

Although this project is only the third category, it can not be completed in a short time.

"Cough ~" Denise coughed awkwardly, and then said, "qinluo, you don't want to be funny at all

Joke?

Emmmm……

Qin Luo shrugged his shoulders and flashed a helpless smile on his face.

No one will believe it on anyone's head.

"Professor Denis, what I said is true. If you don't believe it, I can show you on the spot." Qin Luo said.

Calculation on the spot?

In fact, this is not impossible.

In this case, let me have a look at the calculus. I'd like to have a look at it. In just a few days, you have demonstrated the differential equation of single value group

"No problem!" Su Yun Lang voice should a, and then to the side of the staff waved, the latter quickly took a few pieces of white paper to Qin Luo in front of.

"Teacher, I'll start now?"

"En ~"

nodding his head, dreine's eyes were fixed on Qin Luo without blinking, for fear of missing any action of Qin Luo.

If the function f (x, y) is continuous on the rectangular domain R and satisfies Lipschitz condition with respect to y, then the equation dy / DX = f (x, y); there is a unique solution y = φ (x), defined on the interval | x-x0 | h, continuous and satisfies the initial value condition φ (x0) = Y0, where h = min (a, B / M), M = max | f (x, y) |.

Let y = φ (x) be the solution of the equation defined on the interval x0 ＜ = x ＜ = x0 + H and satisfy the initial value condition φ (x0) = Y0, then y = φ (x) is the continuous solution of the integral equation y = Y0 + ∫ f (x, y) DX, x0 ＜ = x ＜ = x0 + H, and vice versa.

For all N, the Picard stepwise approximation function φ n (x) is defined on x0 ＜ = x ＜ = x0 + H, continuous and satisfies the inequality | φ n (x) - Y0 | = B.

……