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rod calculus fraction multiplication. 3 1 / 3 × 5 2 / 5 Arrange the counting rods for 3 1 / 3 and 5 2 / 5 on the counting board as shang, shi, fa tabulation format. shang times fa add to shi: 3 × 3 + 1 = 10; 5 × 5 + 2 = 27; shi multiplied by shi:10 × 27 = 270; fa multiplied by fa:3 × 5 = 15; shi divided by ...
[2] [3] The major texts from the period, The Nine Chapters on the Mathematical Art and the Book on Numbers and Computation gave detailed processes for solving various mathematical problems in daily life. [4] All procedures were computed using a counting board in both texts, and they included inverse elements as well as Euclidean divisions.
The Tsinghua Bamboo Slips, containing the world's earliest decimal multiplication table, dated 305 BC during the Warring States period. The Chinese multiplication table is the first requisite for using the Rod calculus for carrying out multiplication, division, the extraction of square roots, and the solving of equations based on place value decimal notation.
Amazon.com, Inc (NASDAQ: AMZN) looks to cease operating its Kindle e-book store in China from the end of June 2023, Reuters reports based on the e-commerce giant's official WeChat account. China's ...
The Chisanbop system. When a finger is touching the table, it contributes its corresponding number to a total. Chisanbop or chisenbop (from Korean chi (ji) finger + sanpŏp (sanbeop) calculation [1] 지산법/指算法), sometimes called Fingermath, [2] is a finger counting method used to perform basic mathematical operations.
[1] [2] Fractions are collected based on differences in a specific property of the individual components. A common trait in fractionations is the need to find an optimum between the amount of fractions collected and the desired purity in each fraction. Fractionation makes it possible to isolate more than two components in a mixture in a single run.
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To facilitate those who still use traditional units, and for other uses, the calculator also allows the entry of values as mixed fractions and the display of values as mixed fractions. Entry of mixed fractions involves using decimal points to separate the parts. For example, the sequence 3. 1 5. 1 6 →cm converts 3 + 15 ⁄ 16 inches to 10.0 ...