Ending the conversation with the two professors, Xia Lu's heart could not calm down for a long time.

If you prove a conjecture, you can be on the news broadcast, you can get millions of rewards, and you can become a professor and researcher.

They are all socialist college students, and if he can do it, I can do it.

Brain power, instantly increase by 100 stars!

That's impossible.

Xia Lu had no intention of reviewing the materials for the biology final exam in the library, and his heart flew farther away.

"Professor Cao is right, never underestimate a young man with dreams. ”

"I will study the optimal system, exact solution and conservation law of nonlinear partial differential equations first. ”

Xia Lu knew that this topic belonged to the field of mathematical physics, so he borrowed some literature and studied it with great concentration.

I don't know if I don't learn, I'm scared when I learn, mom is so difficult to understand.

Even the relatively simple Buckran transformation method, Xia Lu also has a headache to see, but he doesn't know why it is.

Professors Cao and Yu undertook extremely advanced research tasks, and they thoroughly studied all known theories, and then made innovations, trying to develop a new nonlinear partial differential equation theoretical method that has universal significance and can solve special application problems.

At this time, the system swiped a wave of presence: "The system mall has been updated, please confirm with the host." ”

Xia Lu entered the system mall and found that there were new products in the mall.

Before the update, there were only two types of products in the system store, Brain Cards and Body Function Cards, each of which cost 200 points.

The new product is [a method for solving the optimal system, exact solution and conservation law of nonlinear partial differential equations that are both universal and applicable to specific application environments].

To redeem this new item, you need 200 Credits.

Xia Lu's hand trembled slightly: "Wo By, this can also be exchanged?"

System: "Everything you have can be redeemed, you can redeem everything." ”

Xia Lu asked: "Can the method you sell solve the academic problems faced by Mr. Cao and Mr. Yu's projects?"

System: "Perfectly solved." ”

Xia Lu: "Then you let me see the content of the text first, and only give a title, I don't know if you are the title party?"

System: "The host can be exchanged for 200 points [a method for solving the optimal system, exact solution and conservation law of nonlinear partial differential equations that is both universal and applicable to a specific application environment], hereinafter referred to as [method]. ”

Xia Lu: "Don't you understand what I mean? I can't make a deal just by looking at the title." ”

System: "The host can exchange 200 points for [Method]." ”

Forget it, it's not interesting to talk to the system.

It's also strange to say, but at this time, the system updated the mall and added a very targeted product--- [Method].

If the [method] can really solve the difficulties of the two professors Cao and Yu, then 200 points is definitely a very cheap price.

200 points can be converted into RMB for 20,000 yuan, is the value of the two professors' projects only worth 20,000 yuan?

No, the scientific research funds allocated by the state to the two professors amounted to 5 million yuan in the first installment alone.

Is this really an equivalent exchange?

Xia Lu didn't delve into whether there was any earth-shattering conspiracy behind the system, he was very interested in [Method], and curiosity drove him to want to find out.

Xia Lu pulled out his list of exchangeable items, and it was time for equivalent exchange.

The valuation of physics knowledge is 4012 points, the valuation of mathematics knowledge is 3901 points, the valuation of chemistry knowledge is 3511 points, the valuation of biology knowledge is 3028 points, and the valuation of literature knowledge is 3329 points......

It is meaningless to exchange knowledge for methods.

Without the support of the basics, the [method] is useless.

The valuation of swimming skills is 2012 points, the valuation of underwater breath-holding skills is 1452 points, the skill of raising cats is 233 points, and the skill of drinking is 98 points......

It's a pity to finally brush up the valuation of these skills, and it's a pity to redeem them.

After thinking about it, Xia Lu decided to start from the emotional side.

With 14 points remaining, there are 196 points left to make up 200 points.

"Sell the affection between me and my high school English teacher, Fu Juying. ”

The equivalent exchange, and the emotional → between the high school English teacher Fu Juying and the 202 points. The exchange was successful with a balance of 216 points. ”

The emotional memory of the kind and kind teacher Fu Juying was erased.

Xia Lu was covered in cold air, and his scalp was numb.

This state lasts for a few seconds and then returns to normal.

Xia Lu felt very tired and fell asleep on the table.

After sleeping for more than half an hour, Xia Lu woke up.

"Buy [Method]. ”

"Equivalent exchange, 200 points→ [Method]. The exchange was successful with a balance of 16 points. ”

【Method】When you get it, Xia Lu immediately checks it.

V=ξ（x，t，u）∂/∂x+τ（x，t，u）∂/∂t+φ（x，t，u）∂/∂u，△=αuxxxxx+βuuxxx+γuxuxx+δu^2ux+ut……

"This ...... What the hell is this?" Xia Lu fell into deep thought.

The content of the text of [Method] is actually not much, which is equivalent to the length of a page of A4 paper, and it is all expressed in mathematical symbols.

The problem now is that more than 90% of the content in the [Method] is not understood by Xia Lu at all.

"System, can you explain the meaning of these formulas in [method]?"

System: "It is recommended that the host upgrade their brain power to elite 2 stars." ”

Xia Lu asked, "What is the equivalent level of the two-star brain elite?"

System: "The best chess player in the world, the brain power is equivalent to one star of the hegemon." ”

The elite one star is followed by two stars, three stars, and then the overlord one star.

The best chess player in the world?

Xia Lu remembers that the chess grandmaster Kasparov has an IQ of 190, so Kasparov is a one-star hegemon?

Then the brain power of the elite two-star is only a little worse than that of Kasparov.

With the brainpower of the elite two-star, and then continuing to improve his knowledge of mathematics and physics, Xia Lu believes that he should be able to crack the [method] like a book of heaven.

If he couldn't fully understand the [method], Xia Lu would never dare to publish this thing to the public.

Upgrading from an elite 1 star to a 2 star requires 10,000 points.

The [method] of 200 points is just a bait, and increasing brain power is the king...... Xia Lu is entangled, 10,000 points, that has to sell a lot of precious things.

Yes, this is equivalent exchange.

Real, but brutal.

At the critical moment when Xia Lu broke through the bottleneck of his brain value, he thought of a person who he had to do something meaningful to this person.

"Senior Sister Wanwan, before the winter vacation, let's have a meal together. Xia Lu sent a WeChat message to Tang Wan.

At the critical juncture of upgrading, Xia Lu needs the help of Senior Sister Wan Wan very much.

If Senior Sister Wan Wan gave Xia Lu the help she needed, Xia Lu secretly vowed to repay her doubly.

However, an hour passed, and Tang Wan did not reply, estimating that she was busy.