This is a story about two top academics who factored each other into the equation of life while solving problems at the age of 17.
Shen Yanzhi was a walking set of formulas, and his draft paper was always filled with rigorous deductions. However, after meeting Lin Che, he discovered that some logic could not be defined by functions - for example, the other party always handed him a draft paper with venomous comments when he was stuck, for example, the approach of the smell of cedar would make the parabola deviate from the focus, and for example, the name that should have been erased always quietly grew in the corner of the coordinate axis.
Lin Che was an "outlier" who could take second place in the exam even while sleeping in class. Her steps in solving problems were like improvisation, but she knew Shen Yanzhi's mistakes very well. He used casual teasing to break through the other party's rigidity, but when a certain sycamore leaf was inserted into the textbook, he hid the tenderness of the wet tip of his pen. The lights of the self-study that night reflected the overlapping shadows of the two people, and he discovered that the top student whom he ridiculed for not knowing how to adapt turned out to be the most complex unknown quantity he had ever solved.
Between the desks piled with test papers, in the light and shadow of the late-night library, two teenagers with completely opposite personalities were like two asymptotes that should have been parallel, intersecting due to a misplaced auxiliary line. They used their poisonous tongues as a cover and competition as a battlefield, but they left an indelible intersection on each other's coordinate axes - it turns out that the 17-year-old equation never had more than a standard answer. When the rigorous Shen Yanzhi met the adventurous Lin Che, those "mistakes" and "deviations" that were ridiculed eventually became the most unique problem-solving path to each other's heart.
This is a tug-of-war about mathematics, youth and heartbeat. When the parabola finally finds its focus, they realize that the best answer is never at the end of the scratch paper, but in the eyes of the person who always loves to disagree with you.
Intention: Two men