Lan Yin took the pen, took off the cap, and took out his monthly math test paper from Professor Mullin.

Afterwards, she placed the test paper on the gray-black marble coffee table in front of her, leaned over and wrote a formula in the blank space of the last exercise of the test paper, leaning over, 'shu...shu...shush-'.

After writing, she closed the pen again, put the test paper and pen on the table, and pushed it back in the direction of Professor Mu—

After doing this, Lan Yin immediately got up from the sofa.

He left a sentence lightly.

"Okay, you can understand by reading this. I still have class, so I'll go first."

Seeing Lan Yin's actions, Principal Chen subconsciously got up to send people out.

Professor Mullin, on the other hand, picked up the test paper from the gray-black marble coffee table, staring at the girl who had just left a line of formulas——

A line of formulas he had never seen before!

A few seconds later, Professor Mullin's eyes lit up!

In this simple formula, he seemed to see something.

But specifically, calculation is needed to determine the correctness of this formula.

Thinking of this, he immediately took out a pocket book half the size of a palm from the inner pocket of his suit jacket.

Then he picked up the pen, and quickly wrote something on the notebook with a look of obsession—

Professor Mullin was writing faster and faster, as if he had discovered some miracle of truth. Gradually, the whole person's condition became a little crazy!

When Principal Chen returned from sending the little benefactor, what he saw was Professor Mu with gray hair. His expression was solemn and ecstatic, like a state of madness, and he kept writing and calculating on his small notebook...

Originally, Principal Chen planned to discuss the mathematical formula left by the little benefactor with this Professor Mu, who had come from afar.

But now, after being stunned for a moment, Principal Chen realized that he probably won't pay attention to himself until Professor Mu has figured out the mathematical calculations in his mind...

So he had to sit aside and wait for the mathematics professor from Dongming University to complete the calculation.

In school, a morning passed quickly.

Lan Yin dismissed school at noon, and did not plan to have lunch in the school cafeteria as before, but left the school and returned to her residence villa.

Now that Chef Jin carefully prepares nutritious meals every day, she will naturally not settle for the second best dining hall.

Anyway, the residence is not far from the school, and you can go to the place just by turning a corner.

Lan Yin had just left the school. In the principal's office, after a morning of calculations, Professor Mullin finally confirmed that the calculation formula written by the senior student of Ningcheng No. 1 Middle School was correct!

And using this formula, he spent a morning solving what is called a world-class mathematical problem!

This result was something that Professor Mullin never thought of before he came to Ningcheng No. 1 Middle School!

In addition to being excited by the current result, he is even more eager to meet the seventeen-year-old high school girl - Lan Yin!

But he searched for the classroom of Class 11 of the third grade, but found that the girl had already left school...

At this moment, Professor Mullin felt that he seemed to realize what it means to live without thinking about tea and rice!

In the past, he never dreamed that his mood would appear because of a teenage girl——

Not because of feelings, but because of a heart that loves learning!

He is in his forties, but because of the appearance of a young girl, he has regained his original intention of active learning——

【Wanben God Station】Official website: www.wanben.org

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