The Courtyard House: Xu Damao's Aunt is the Queen of Women

"Good lad, you were born in the wrong era. If you were born in ancient times, you would definitely be a fierce general who could take the enemy general's head amidst thousands of troops, hahaha."

Liu Hao put the jar back in its original place, and Ye Tingkai clapped his hands and laughed, extremely satisfied with his son-in-law.

My daughter has such good taste; she unexpectedly found him such a wonderful son-in-law who is both scholarly and martial, and whose conditions are impeccable in every way.

Liu Hao took off his apron, wiped his hands, and said modestly, "Uncle, you flatter me. I have strength but no brains; I'm no match for a general commanding thousands of troops!"

"Don't you have a brain?"

Ye Tingkai patted Liu Hao on the shoulder and said seriously, "Young man, don't be overly modest. You need to have sharpness and confidence. Your skills are not for hiding, but for establishing yourself!"

Liu Hao knew that he needed to show gratitude and make promises to reassure his father-in-law so that he could entrust the little queen to him.

"Thank you for your guidance, Uncle. From now on, I will definitely use my true abilities to not only establish myself but also make a name for myself so that you and Aunt can rest assured!"

"Haha, good, good, good. Juan'er is an impatient girl, lazy and greedy. Xiao Hao, you'll have to be more tolerant of her in the future. If she does anything wrong, just tell us and we'll teach her a lesson!"

Ye Juan quickly tried to defend herself, shouting, "Dad, what do you mean I'm lazy and greedy!"

Zhang Shuhua glared at Ye Juan with disdain.

"You can't even cook, and you call that lazy? You'd better learn properly from now on, otherwise, are you expecting Xiao Hao to cook for you after we get married?"

"I... I'll learn!"

Ye Juan was most afraid of Zhang Shuhua and dared not talk back.

Liu Hao quickly protected the little queen, lying through his teeth, and said, "Uncle and Aunt, Xiao Juan has a very good temper. She's gentle, kind, and hardworking. She always helps me in the factory. She's incredibly thoughtful. Meeting her is a blessing I earned in my past life!"

Ye Tingkai and Zhang Shuhua looked at each other, wondering if this was referring to their own daughter.

Even Ye Tingzhong and his wife were speechless. Although they liked Ye Juan very much, they couldn't compliment Ye Juan's fiery temper.

Besides Zhang Shuhua, who else in the family would dare to mess with her?

Ye Xi looked at Liu Hao, who remained calm and composed while blatantly lying, and felt quite envious of her younger sister.

Whether Liu Hao truly loves Ye Juan or not, everyone can see and feel it.

This younger sister is a lucky person!

She was kidnapped by human traffickers when she was a child, but she happened to meet her father. Her younger sister would smile whenever she saw her father and insist on being held by him. If he didn't hold her, she would cry.

Her father felt he had a connection with Ye Juan, so he adopted her and treated her as his own daughter.

Now that Ye Juan has grown up, she has found a man who is truly good to her and is so outstanding.

Isn't that just good fortune?

"Oh dear, I'm nowhere near as good as you say!"

Ye Juan looked as sweet as if she had eaten honey, the corners of her mouth couldn't help but turn up, and the smile in her eyes couldn't be hidden.

"You silly girl, you're just lucky!"

Zhang Shuhua flicked Ye Juan on the forehead and said sternly, "Come on, let's cook!"

After saying that, he immediately changed his expression and looked at Liu Hao with a smile.

"Xiao Hao, go back inside, it's cold outside."

"Okay, Auntie!"

……

Back in the main hall, Ye Xi moved a table over and began testing Liu Hao's mental arithmetic abilities to see what level he had reached.

It's incredible that it can calculate the 13th root of a 200-digit integer in seconds.

From a difficulty perspective, reading a 200-digit number in one go takes more than ten seconds, and the 13th root is a high-order inverse operation.

Even professional accountants can spend several hours or more working out the calculations step by step using an abacus, and they still might not get it right.

Instant calculation requires not only super strong numerical memory and pattern-finding ability, but also a thorough understanding of the characteristics of high-order values. This ability is comparable to that of a human supercomputer.

Ye Xi opened her notebook, intending to tackle an even more difficult problem, but after a pause, she decided to go for the maximum difficulty level.

She flipped to the research topic she was working on and pushed it in front of Liu Hao.

"I have a question here, see if you can understand it!"

When Liu Hao took a look, the dense mathematical formulas made his eyes dizzy. What kind of nonsense was this?

Ye Tingkai stood to the side, holding a cup of tea, watching with a blank expression.

What did you write?

Liu Hao snapped out of his daze and looked over again, and a miraculous scene unfolded.

The formulas on the paper seemed to come alive, starting to calculate rapidly, and a vast amount of knowledge flooded into my mind.

My scalp is a little itchy; it means my brain is starting to grow!

"Hey, are you working on the finite element discretization of the creep equation for high-temperature alloys, solving the stiffness matrix of a three-dimensional eight-node isoparametric element, and selecting initial values ​​for the Newton-Raphson iteration?"

Ye Xi was completely convinced. It was heartbreaking to see such a genius working as an accountant in a steel rolling mill.

If those old men at the research institute found out, wouldn't they all rush to the steel rolling mill to demand his return?

"Our research group spent almost a month at school using a hand-cranked calculator, and it got stuck after three iterations. Can you do that?"

"I'll give it a try!"

Liu Hao began calculating, muttering to himself, "The Jacobi matrix of the isoparametric element coordinate transformation, the selection of Gaussian integration points for the stiffness matrix, the initial values ​​for iteration to avoid stress singularities... Sister, you've miscalculated."

"In stiffness analysis, the first key value is 0.0327, the third is 0.0189. The initial value for iteration is 850. After five calculations, a stable result can be obtained. According to this number, the high temperature deformation resistance of the alloy can be improved by 42%."

Ye Xi frowned and thought for a few seconds, then reached for the notebook and opened the half-finished draft.

Comparing the issues pointed out by Liu Hao, several key values ​​were exactly the same as those calculated in her first two steps. The initial value that caused her to get stuck was precisely the critical point where she failed to avoid making a calculation error.

She grabbed the slide rule clipped between the pages of her notebook and quickly checked her calculations with her pen.

The scratching sound of the pen tip gliding across the paper was particularly clear in the quiet central hall.

Ye Tingkai gently patted Liu Hao's shoulder and asked softly, "Was this question difficult?"

"..."

After a moment's thought, Liu Hao said, "Uncle, in the context of scientific research and teaching in China, this problem is considered a top-tier applied mathematics problem at the research level."

Ye Tingkai gasped, and just as he was about to speak, he heard a snap.

Ye Xi dropped the slide rule from her hand onto the table. She looked up at Liu Hao with a look of shock in her eyes, and her voice trembled slightly.

"Everything's right, Liu Hao, you...you...this...is unbelievable...is this your limit?"

Liu Hao also wanted to see if he could solve a more difficult problem.

"It shouldn't be. Is there something even harder? I can give it a try."

"have!"

Ye Xi flipped the notebook to two-thirds full and introduced, "These are advanced problems my teacher left me, involving the triple coupling of fluid mechanics, solid mechanics, and computational mathematics."

"This is a fluid-structure interaction problem in the combustion chamber of an aero-engine. The turbulent flow of high-temperature gas impacts the combustion chamber wall, causing the wall to deform. This deformation, in turn, changes the gas flow field, and the two influence each other."

"Not only do we need to solve the vortex equations of turbulence, but we also need to calculate the thermal deformation of the wall, and finally use the finite element method to connect the two systems."

"The teacher said that even a team of experts from the Chinese Academy of Sciences, using the most advanced computers, would need more than half a month to solve this problem, and there's a high probability they'd get stuck due to the iterative divergence of the coupling terms..."

Ye Tingkai listened to Ye Xi's introduction with a calm expression, because he couldn't understand it at all.

"Uncle, have a smoke!"

Liu Hao took out a cigarette case, handed one to Ye Tingkai with both hands, lit it with a match, and began to look at the questions.