Can anyone help me find the story of the three mathematicians?

1.The story of Hua Luogeng, a famous mathematician in China: Hua Luogeng helped his father in business when he was a child, and planned to make inventory and keep accounts.

At that time, Hua Luogeng stood in front of the counter, and as soon as the customer left, he buried his head in reading a book and calculating math problems. Sometimes they are so obsessed that they forget to receive customers, and even take the results of the arithmetic as the payment for the goods payable by the customers, which makes the customers startled. Whenever something happened to a customer who neglected him, his father was angry and anxious, saying that he was stunned by reading the "Book of Heaven" and wanted to forcibly burn the book.

When the dispute occurred, Hua Luogeng always held on to the book.

When he was old, little Gauss went to elementary school. The teacher's name was Buettner, and he was a well-known local "mathematician". This young teacher from the city always thinks that the children in the countryside are stupid and cannot display their talents.

In a third-grade math class, Butner lost his temper with the children again, and then wrote a long equation on the blackboard: 81297+81495+81693+......100701+100899=？

Wow! How many numbers does this add up? How do you calculate it? "The students were terrified, and the more nervous they were, the more they couldn't figure out how to calculate.

Buettner was proud. He knew that adding up 100 numbers like this, the latter number was 198 greater than the previous one, and these naughty students would not have calculated the result even if they had obediently calculated all morning.

Unexpectedly, after a while, little Gauss came over with a small slate with the answer written on it, and said, "Teacher, I'm done." Butner didn't even raise his head, and said angrily

Go and go, don't mess around. Whoever wants to write a number difference indiscriminately, you have to be careful! With that, he swung his hammer-like fist.

But little Gauss insisted on not leaving, saying, "Teacher, I'm not messing around. And he gently placed the small slate on the podium. Butner looked at it and was speechless in surprise, he didn't expect that this 10-year-old child would come up with the correct answer so quickly.

It turned out that little Gauss did not add one by one like other children, but carefully observed, used his brain, and found patterns. He found that the sum of the first and last two numbers was 182196 each time, and the sum of 50 182196 could be quickly calculated by multiplication.

Gauss Jr.'s incredible talent for mathematics made Buettner both admire and feel guilty. From then on, he no longer despised the children of the poor. He bought Gauss Jr. many math books and asked his young assistant Battier to help Gauss Jr. learn math.

3.When Galileo was 17 years old, he was admitted to the University of Pisa to study medicine. He likes to ask questions, and he never gives up without asking questions.

Later, Galileo was indeed criticized by the school, but his spirit of perseverance, inquisitiveness, and pursuit of truth did not change in the slightest. Because of this, he eventually became a generation of scientific giants.

Zhou Shijie studied hard when he was a child, and later served the motherland and made great contributions to the motherland.