mynovelweb Chapter 180 Projection Matrix
Chapter 180 Projection Matrix
Room 312
As soon as I stepped into the classroom, the giant projection screen in front of me lit up with a "whoosh".
On the screen, a beaver, bound hand and foot, is hanging in mid-air, the ropes binding it lowered even further than before.
Directly below it was a large, boiling iron pot, and next to it stood several masked men with extremely perfunctory appearances, chopping onions and potatoes with kitchen knives on a cutting board.
The beaver struggled desperately with its round body, trying to break free of its restraints.
"Onion chopped!" came an exaggerated voiceover from the screen.
"Put in the potatoes!"
One of the masked men raised an exaggeratedly long-handled ladle and vigorously stirred it in the boiling soup.
"Once the vegetables are cooked, we'll throw the beaver in, hahaha!"
The beaver in mid-air, its eyes brimming with tears, popped a large speech bubble from its mouth:
【Help!】
In the upper right corner of the screen, a blood-red countdown is ticking.
【59: 52】
The countdown numbers were decreasing with each heartbeat, flashing a dangerous red light frantically, creating an overwhelming sense of urgency.
Immediately afterwards, a new question appeared in the center of the screen.
This is a question testing matrix algorithms.
Compared to those tedious and boring calculations, the hacker behind it is clearly a sophisticated expert who values whether the challenger truly understands the underlying mathematical concepts and knows how to apply them.
The core of the problem: projection matrix.
Su Hao took a deep breath, and his immense computing power poured out into his mind in an instant.
"If the trace of a matrix is 2, it means that the matrix projects three-dimensional space onto a two-dimensional plane."
The trace is the sum of all the eigenvalues of a matrix.
In this specific and closed logical context, the eigenvalues of the projection matrix can only be 0 or 1.
Therefore, since the sum is 2, the rank of the matrix must be 2, without a doubt.
pat.
Su Hao walked to the keyboard in the center of the classroom and typed in the answer.
The next second, a crisp "ding" sounded on the screen, and the rope suspending the beaver quickly rose upwards.
Immediately afterwards, a string of numbers representing the next destination popped up on the screen.
The masked thugs on the screen, who were arrogant and domineering just a second ago, were now jumping up and down in a fit of rage, shouting the classic line "Just you wait!" in frustration.
"Phew, only a few levels left."
Su Hao looked at the status bar that suddenly popped up at the bottom of the screen, which resembled a game level progress bar.
According to the progress bar, now we only need to solve two more puzzles to complete this farce.
……
At this moment, Ellie was enveloped by a strange sense of irritability and displeasure.
She was always confident that she would be the first one to arrive.
But upon arriving at the destination, one always finds chalk dust scattered on the ground, or an illuminated warning light—
Some unknown jerk of a student has already beaten me to it!
Especially that broken screen, which "thoughtfully" and glaringly recorded and displayed which visitor she was.
[No.002]
Ellie stared intently at the "2", gritting her teeth.
Ellie loves math.
But this is by no means the kind of simple love a young girl has for a particular subject.
Rather than calling it a love for mathematics itself, it's more accurate to say...
She was deeply fascinated by the absolute certainty of mathematics—that there was no room for compromise, that right was right and wrong was wrong—and that it didn't require pleasing anyone.
As Ellie walked out of the teaching building with a cold face, the students passing by immediately burst into suppressed whispers.
"Wow, is that someone's girlfriend? She's so beautiful, I'm so envious."
"What are you thinking? They're probably family members. Isn't there a new student registration meeting today?"
Hearing these comments,
Ellie gave a cold sneer to herself.
These idiots who judge people by their appearance!
I'm a student at the same school as you, and my IQ is way higher than yours!
"snort!"
Ellie didn't even bother to roll her eyes, let alone argue.
It doesn't matter.
In any case, once the outcome of this hacking challenge is revealed, everyone will know for sure:
Among this year's freshmen, who is the smartest one standing at the top of the pyramid?
This absolute arrogance is not unfounded.
Ellie displayed breathtaking, all-around talent from a young age.
He excels in writing, mathematics, art, debate, and even vocal music.
No matter what type of competition she participates in, she is always the one standing at the highest point of the podium.
Those around her were used to it, as if she was born to be so dazzling.
In that environment where she was constantly surrounded by flowers and applause, Ellie gradually began to take it for granted that:
She felt like she was a chosen one, kissed on the forehead by God.
Until—before that happened.
That was the scene of the National Debate Competition Finals.
The debate that day was extremely pointed: "Should justice be judged by results or by motives?"
As always, she stepped onto the podium with confidence and even a touch of arrogance.
That day, Ellie wore a spotless white shirt, and her blonde hair was neatly tied up.
She presented her argument with a powerful voice and refined, meticulously crafted words.
"Justice always originates from good motives."
.......
Undeniably, the outcome is largely subject to uncontrollable luck and objective circumstances.
But only motive, only the thought that arises in one's heart, can reflect the truest nature deep within the human soul!
As soon as she finished speaking, the audience erupted in enthusiastic cheers, followed by thunderous applause.
At that moment, Ellie resembled a seasoned orator who had been navigating the political arena for decades.
Every glance and every gesture firmly controlled the breathing and emotions of the entire audience.
She turned this serious debate into her own personal showcase.
However, when the opposing debater picked up the microphone, he only got to the beginning.
Ellie's back hairs stood on end instantly, and cold sweat poured out uncontrollably.
"Motivation can at any time become a hypocritical excuse for self-justification."
.......
Therefore, only the results can serve as the sole test of human choices.
If justice is judged based on motives that are difficult to prove, then all acts of violence, murder, and injustice in the world can obtain a seemingly legitimate excuse!
Standing opposite him was a black boy who, even with the most polite words, could hardly be described as handsome.
But his presence on the debate stage was like an insurmountable wall.
No matter how Ellie used her words to relentlessly pursue the boy, no matter how sharp her questions were, she couldn't break through the boy's ironclad defenses of logic.