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Calculating tools referred to the tools used in calculations or objects that assisted in calculations. Since the birth of mathematics, people had been constantly looking for convenient and accelerated computing tools. There were many calculation tools in ancient China. For example, the "calculation table" of the Warring States Period was composed of bamboo slips. It was filled with numbers in the form of a table. It could perform two-digit multiplication and division, multiplication with scores, square root, and other operations. When using it, the numbers were split, and the corresponding numbers were found on the calculation table. The result was calculated in a specific way. The appearance of the "calculation table" was related to the fine management of the country at that time and the frequent trading. It not only solved the calculation needs, but also gave birth to the concept of negative numbers. The Ming Dynasty mathematician Wang Wensu's book "The Treasure of Mathematics" had the concept of "derivative", which was the cornerstone of calculus. In addition, from the table to the counting rod to the abacus, the abacus was an ancient and unique calculation tool. The earliest form appeared in the Han Dynasty and was gradually finalized in the Song Dynasty. Its standard style was a rectangular wooden frame with multiple parallel beads. Usually, there were 13 gears with a total of 91 beads. There were seven beads on each rod. Two beads on the top row represented five, and five beads on the bottom row represented one. By pushing and pulling the beads, the calculation was done. Unlike modern calculators, it relied on the coordination of the brain and fingers. It was a mathematical skill exercise and thinking art. In 2013, it was included in the list of intangible cultural heritage by the United Nations. In modern times, there were also various calculation tools, such as the plumber's special-shaped calculation tool, which could calculate different lengths such as L1 and L2, as well as all types of calculations for the middle section and the elbow (input the ground to the elbow's horizontal port H); the box system had an automatic mortgage calculation function, and the result could be obtained instantly by entering the mortgage information (loan type, repayment method, monthly payment amount, etc.); there were also key, pin, and interference connection geometry and strength verification calculation tools. It was free to install, and could calculate the strength of flat keys, tangential keys, and many other types of keys. "A Short History of the Future: Legends of the Intelligent Era" was equally exciting. Everyone was welcome to click and read it!

Sure. Flowerfruit Mountain was a physical sect, so the strength set had a certain effect on Flowerfruit Mountain. For example, in the content mentioned before, 175 with three Strength Sets could obtain additional Strength bonuses. For 109 Huaguo Mountain, they could also choose the Strength Sets to increase their attributes. However, there were other options when choosing equipment sets, such as the Godly Needle Sea Scouting Set. When using the Godly Needle on the Meridians of the Flowerfruit Mountain, there was a chance to cause double damage to the target, and the damage after triggering could be increased by 2%. The choice of equipment set could also be considered according to one's own needs and the game scene. [Ling Yuji: Fate of the Eastern Profound World] is equally exciting. Everyone is welcome to click and read it!

I recommend a few historical novels. " Records of the Great Qin Empire," written by Meng Zi. The protagonist transmigrated to the Great Qin Empire and became a criminal of the royal family who was exiled to the border. In the story of Qin, Qin Shihuang, Xiang Yu, and other elements, he changed his fate. The plot was well written, and the relationship between the characters was more complicated. " The Rise of the Great Qin Empire " was written with honor and loyalty. The main character was reborn at the end of the Qin Dynasty and rose up to fight for hegemony in the chaotic times. The first and middle stages were not bad, but the main character was invincible in the later stages. Although there were some flaws, it was a masterpiece at the end of the Qin Dynasty. " Rise of the Empire " was written by Broken Blade Tianya. A third-rate doctor traveled to the end of the Ming Dynasty to save the empire. The main character was a little dissolute, but it was in line with the characteristics of the Ming Dynasty. It was a cool novel. The Rise of the Three Empires was created by Blue Sky and Firmament. It was the story of the son of a transmigrator who dominated the Three Kingdoms. Empire Reappears, written by Zhang Weiqing. The main character transmigrated to Zheng Chenggong's side and helped him resist the Qing Dynasty. The pace was slow but rigorous. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

I recommend " The Assassination of the Bards ", written by the hero, Brother Caesar. This was a fantasy novel about a different world. The male protagonist, Kevin Inqueshall, was a bard who loved to talk and laugh. He wanted to write a beautiful chapter to convey love and peace. He traveled at the age of 15, and after 10 years, he went to a tavern to make a living. The story began here. This was a unique piece of trash talk. It seemed like it was not serious, but it was actually reasonable. The style of writing was humorous, and it insinuated many real-life problems, such as the keyboard warrior in the online comment section. The protagonist was rational and not extreme. Although it wasn't attractive at first, it was very interesting to watch slowly. However, the main storyline was not very clear, but it was still interesting to watch. Also, this book was slow to update, and the title did not match the content. The title looked serious, but the content was light and funny. It was a good book and worth reading in his spare time. Then, I recommend " The Female Empress with Two Eyes: Something's Wrong with the Plot!" It was a light novel written by Strawberry-a fantasy novel. The male protagonist, Li Yunsheng, had transmigrated to the book he wrote and became the chief assistant. He had an emotional system, and he would be rewarded if he triggered the empress's emotional fluctuations. The empress wanted to take back everything and waited for Li Yunsheng to finish the script. However, the plot was wrong. The female lead was Jiang Qingying. The plot of this book was interesting, but the setting was messy, and there were many foreshadowing but a hasty ending. The impression score was 75, and it was labeled as a palace struggle. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The novel Call of the Wild had a Douban rating of 8.8. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

He recommended a few good novels. From the Ming Cult Leader to the Heavens, a Xianxia novel written by State Duke Peng. The main character started as a servant of the Dragon Gate Escort Agency. His goal was to survive Yin Susu's attack and find the Nine Yang Scripture. He would then cultivate the divine technique and reach the peak. 'The School Belle Is Very Calm' was a youthful campus novel written by Tang Dun. The white-collar Luo Jiaojiao was dressed as a female supporting character in a novel. She was gentle, kind, and strong-willed. She did not want to get involved in the affairs of the male and female leads, but the male lead approached her. There were also male leads and supporting actors with different personalities. Overall, the reviews were not bad. " Building a Fantasy Park from Zero " was a science fiction novel written by Zhan Yue. The male protagonist, Qiao Mian, created a fantasy park with elements such as dinosaurs, King Kong, and Transformers. It was very interesting. " The Man Who Dressed Quickly as the Big Boss is Coming Online ", a space-time travel novel written by Moon Rain. The female ghost who failed to transmigrate possessed the male supporting character. The female wore the male without a couple. The female protagonist and the system worked together. The setting was fresh and the writing was good. " Don't mess with me, the overbearing Satan ", a young school novel written by Yu Qing. The school hunk, playboy, and male singer all loved the female lead, and girls of different ages could watch it. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The following are some resources related to emotional Short videos materials: - Whale Material: A good place to find high-quality emotional video material. The material covers many categories, from beautiful scenery to bustling cities, from tempting food to exciting sports. - Mazwai: It has a rich video library, a simple website design, and an attractive large-screen background video on the homepage. - Life of Vids: Source material from Leeroy Studio in Canada. They are all original works with a strong personal style and emotional color. They are mainly categorized as emotional lifestyle videos. - Video: An internationally renowned Short videos material website. Famous for its high-quality video materials, you can find a variety of materials such as natural landscapes, urban sceneries, and people's activities through keyword search. Most of the materials can be used for commercial projects for free, but some have to be paid for. However, they ensure high quality and professionalism. The story of one person and a group of people is equally exciting. Everyone is welcome to click and read it!

I recommend " Scumbag Detection System " by Jing Ling. This was a super cool sci-fi space novel. "You were tortured by a scumbag?" With this system, a scumbag rating of 99 points would be considered a saving or destruction factor. Destruction, of course! The original name was Scumbag Man's Destruction System. It was a dark and niche novel, but it had now ended. There were all kinds of stories about punishing scumbags in the book, such as the story of her sister being abused. Moreover, this book not only made people feel good by abusing scum, but it also made people think deeply. What was the definition of scum? The female lead was both good and evil. The plot was compact and the ending was unexpected. Although it was a little dark, it was really interesting. Many people felt relieved after reading it, and even male readers loved it. Few words but strong, strongly recommended! There was also the fantasy romance novel written by Dong Xiaobai," The Record of the Scumbag's Purification ". The male protagonist quickly dressed up to wash away the scumbag. The male protagonist Xie Zhiyan was super good. He was smart and understanding. The writing style was not bad. The emotional descriptions were exquisite and the three views were correct. Although some people did not understand the first chapter, the overall recommendation was very good. 'Scumbag Is More Cheap' was a gaming competition novel written by a broken flower. It was a female online game. The male lead had a cute personality, but the updates were too slow. " Reborn Scumbag Goodbye " was a modern romance novel written by YZmb. The female protagonist was reborn far away from the scumbag and his family, so it was more immersive. " Male Lead Guide " was an ancient romance novel written by Yang Xiaoqi. The female lead brought the system to guide the male lead and supporting male lead. The plot was very strange. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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