Deep Space Fleet

Zhang Yuan observed the other party's expression, if the other party was the kind of person who said "I'm awesome, I'm invincible in the world", then a few casual echoes would be enough.

Anyway, there is no deep friendship, so there is no need to quarrel with each other to the death.

But if the other party really wants to ask for advice, it is also good to exchange a few words with each other.

"It's nothing to mind, just talk about it!" Ye Kaifu said hastily.

Zhang Yuan continued: "...This entire function should be used to deal with pressure changes in gloves, right? That is the SDK interface of that leather glove."

"Yes!" Ye Kaifu's heart skipped a beat, he didn't expect this kid to really understand.

"Because the amount of data generated by the entire glove is too large, this algorithm will selectively discard most of the data, and more than 70% of the data will be discarded."

"yes."

Ye Kaifu nodded again.

Zhang Yuan continued: "I think these redundant data should not be discarded completely. There are 22 joints in a hand, including the arm, and it is true that there will not be too much error if only the data of 22 joints are taken. But Without the details of other parts, there will be a very rough feeling..."

"I have several ideas to deal with these seemingly useless data."

"The first is to calculate their variance after the data is divided into blocks. The variance of redundant data will not be very large... As long as you calculate it in this way, you can judge whether it is redundant data. Anyway, it is better than throwing it away..."

"The second is that after the data is divided into blocks, we can use a value function to calculate the value of the block data...assuming that max[i][j] here represents the maximum value added from the i-th data to the j-th data The optimal solution, the dynamic transfer equation is max [ i ][ j ]= max ( max [ i ][ k ]+ max [ k + 1][ j ]+ w ( i , j ))..."

Ye Kaifu was overjoyed when he heard it at first, and repeatedly said "it makes sense".

There was silence from the beginning to the end, so that it completely entered a state of sluggishness.

Because, in the end, he didn't know what Zhang Yuan was talking about...

My dear friend, what about max [ i ] [ j ], what are you doing?

But a breath from a strong man made him not know how to speak.

As soon as he opened his mouth, he became illiterate.

"...The last thing I want to say is that although an arm has only 22 joints, it has at least 27 degrees of freedom, because the arm, wrist and fingers can be rotated. If these 5 degrees of freedom are missing, the operation It's like an excavator. You don't seem to have thought about that..."

Ye Kaifu understood this sentence, and he also knew this common sense. He thought about it for a long time at the time, but in the end he had to give up strategically because of the difficulty.

Once the arm can rotate, the difficulty of modeling and design will inevitably increase exponentially, and he has no way to handle it.

"Then what do you think should be done?"

Zhang Yuan said: "The calculation of rotation can usually be done with quaternions. The better book of this kind is "Quaternion Physics", which can be understood with a little foundation of complex analysis."

Just saying that, he felt that his thoughts gradually became clearer.

Being a teacher is really good.

"Quaternions..." Ye Kaifu knew this term, and he was already a little convinced in his heart.

He thought wildly in his mind: "...if he was his former teammate, maybe he would win the first prize?"

"The main reason is that my undergraduate school is not very good, and there are too few geniuses who can compare with me, so that I have a kind of laziness. But it's different now..."

Soon, he began to encourage himself again: "Work hard, fighting! Only by studying hard, I, Ye Kaifu, will definitely be able to surpass him!"

He couldn't wait to say: "Zhang Yuan, let me treat you to supper, I didn't understand much just now, can you explain it again?"

"I still eat it now, it's almost 11 o'clock, and I will gain weight."

Because he only ate half a bowl of noodles, Zhang Yuan really didn't feel full, and his heart moved a little.

"Of course I have to eat, the nightlife has just begun!"

"Then... okay."

If the blood sugar concentration is too low, the brain will be retarded.

Zhang Yuan comforted himself like this.

The heart is not as good as the action, and the two slipped out of the bedroom again.

It has to be said that college seems to be the most energetic period in human life, and students generally don't sleep until 12 o'clock.

The East Gate is still very lively.

Along the way, Ye Kaifu kept talking about various mechanical models, parameters of various chips, and various latest space weapons, with an exaggerated and fanatical tone.

"...I really like the Enterprise developed by the Eagle Country, and the Giant Rock Turtle Terrace from the American Country is also good. Well, my country's Flying Dragon is also good. It's an authentic Helicarrier, equipped with the latest electromagnetic guns."

"Indeed, these space weapons ... the results are astounding."

After barely understanding what he was saying, Zhang Yuan licked his dry lips: "However, the current research speed of these weapons is not fast, right? The trend of the whole world is cooperation, not confrontation as before, so each Research on this weapon has also slowed down."

Ye Kaifu spat, as if he hadn't talked like this for a long time: "There are aliens, isn't that Dyson sphere the driving force! Although it is more than a thousand light-years away from us."

"What kind of driving force is more than a thousand light-years? If it is on Alpha Centauri, then it is considered a driving force!"

"If the era of the big starry sky really starts, maybe everyone can buy a private spaceship?"

"...There will be that day, I have already thought about it, my spaceship is called Queen Elizabeth! I can drive my spaceship to travel in space!"

Seeing that Ye Kaifu fell into a frenzy and began to chatter on his own, Zhang Yuan interrupted him abruptly: "Brother, you won't have a girlfriend if you do this!"

"Why?!"

"How do you know?" Ye Kaifu closed his mouth with cold sweat on his head.

Zhang Yuan looked around furtively, and found that the blond female reporter who had been bullied by him was not there, so he breathed a sigh of relief, and swaggered on the chair.

"Because you kept talking about Elizabeth in front of me. From this term, I can tell that you don't have a girlfriend..."

"Isn't the name cute?"

Zhang Yuan felt a little funny, "Yes, it's cute! But girls probably won't like it."

"Together!"

"Together!"

"Together!"

Suddenly, the table next door was noisy. The group drank a lot, and one couple even kissed amidst the noise.

It's not a big deal, it's normal behavior in this day and age.

Faced with this kind of dog abuse, Zhang Yuan glanced twice and didn't bother to look at it.

Ye Kaifu sighed, and said with a little envy: "The ones who are still on campus are basically academic masters, right? It's nice to be young, and I really miss my college days."

Zhang Yuan said: "Most of them should be academic masters, but not all of them. There are also many paddling people who want to hug their thighs and win a prize."

"Anyway, there is a national award, whether it is applying for a scholarship or finding a job, it is more capital."

Being said in this way, Ye Kaifu recalled his experience of being a dog licker, and he was taken advantage of by that "ex-girlfriend".

Well, I said it was an "ex-girlfriend", but I didn't even hold hands, I just gave a title, and the wisher was hooked.

So stupid!

He said bitterly: "The most difficult thing in college is not to watch couples show off their love, high school students show off their grades, and local tyrants show off their money, but to watch couples show off their money, high schoolers show their love, and local tyrants show off their grades..."

I really want to have a cute girl who really likes me!