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How the Ancient Greeks Did Math With Letters, Not NumbersLike Roman numerals, their system borrowed letters; like the Arabic numerals we still use, it only needed one symbol for each decimal place. In the 6th century BCE, the Greek alphabet used 24 letters.
Like Roman numerals, their system borrowed letters; like the Arabic numerals we still use, it only needed one symbol for each decimal place. In the 6th century BCE, the Greek alphabet used 24 letters.
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