Chapter 244 (1/2)
Located near Tsinghua University, this is called green glaze Internet cafe.
Cheng Nuo takes out the last book ”history of modern mathematics” in his schoolbag, puts on his headset, turns on his computer and creates a word document in the confused eyes of several chicken eating players nearby.
The title of the project is printed on the ”preprocessing method of combined compact difference discrete equations for two-dimensional Helmholtz equation”
Cheng Nuo.
Rub your hands, move your fingers, and twist your neck. Cheng Nuo is warming up.
On the left hand side, there is a whole stack of reference materials for seven or eight books.
On the right hand side, there are draft paper, neutral pen, ruler, rubber
Everything is ready, only to start!
Cheng Nuo did not waste any time, according to his plan. For the whole day today, he intends to finish at least 20% of his part of the task.
There will be classes after the National Day holiday, and things will be busier and busier. There is not much time left for Cheng Nuo!
Click on a song ”where's Xueba going?” with the music coming from the headset, Cheng Nuo starts his research work.
”There's a cool guy in our class. Who dares to stand in the way of learning hegemony. ”
”Xueba people have been reading books, even going to the toilet to run.”
…………
”Xueba, Xueba, where are we going? In the end, will the exam be held tomorrow
”Learn the dregs, learn the dregs, you don't want to see any more! I can't remember it after reading it! ”
Cheng Nuo hummed the lyrics in his mouth, while his hands crackled on the keyboard.
One dimensional Helmholtz equation is discretized by CCD scheme to derive two-dimensional Helmholtz equation. First of all, it is necessary to understand what the pretty girl looks like.
More than a year ago, there was a project dedicated to the study of one-dimensional Helmholtz sixth order compact difference method.
Therefore, Cheng Nuo can draw lessons from that paper on some things about the one-dimensional Helmholtz equation.
First, the one-dimensional Helmholtz equation with Dirichlet boundary conditions is considered.
F '' (x) + K ^ 2F (x) = g (x), X ∈ Ω = (0, 1)
F (x) = 0 ∈ α Ω
k is the wave number.
Next, the definition domain is divided into
Cheng Nuo's brain is working fast.
The seven or eight books on Cheng Nuo's left hand side are also flipped back and forth by Cheng Nuo, looking for the necessary information.
On the right hand side of the pile of paper, usually, Cheng Nuo basically can't use this thing.
Because, whether it is the college entrance examination, or those questions that mathematics teachers give in class, are too simple to be worth Cheng Nuo's ”draft paper” which is the treasure of learning hegemony.
But it's not the same now.
In a short time in the morning, Cheng Nuo has used more than ten pieces of paper.
Every draft paper is filled with formulas that ordinary people think are ghost symbols.
The progress of the project is also developing in a gratifying direction.
Although Cheng Nuo's brain area width is higher than that of ordinary people, it has not yet got rid of human's degree.
Cheng Nuo is only a freshman, so this time, Cheng Nuo didn't do as usual. As soon as he got the project, he took the attitude of hastening the withering and decaying to finish it easily.
With the support of the brain's powerful computing power, Cheng Nuo is not worthy of being called, but it is not easy.
…………
Inside the green glaze net bar.
Cheng Nuo this just like a clear stream of existence, or attracted the attention of many people in the Internet bar.
Because Cheng Nuo is sitting in the Internet bar near the door. So whenever a new customer comes to visit and passes by Cheng Nuo, he will notice that a young boy is reading a book quickly while writing and painting. Both hands are still frowning, sometimes thinking hard, and sometimes suddenly smile.
From time to time, he laughed and said, ”Wow, Kaka, I should use this formula. I'm so disappointed!”
？？？
Is it me It's the wrong place.
Customers who want to eat chicken look confused.