Mathematical signs – how to live without them? Subtract and divide. It is associated with Ouroboros, a snake that bites its tail.Ĭopyright © is a sign of copyright protection, is a Latin letter “c” (the first letter of the word “copyright”), located in a circle. Perhaps this was due to the Roman number 1000 (originally looked like ↀ, or CƆ) or the last letter of the Greek alphabet – omega ω. Then he did not explain why he chose this sign. The mathematician Wallis was the first, who defined in 1655 the infinity sign like this symbol – ∞. Well, special and also random symbols, of course, too. There are also Greek letters, a copyright sign, currency signs and a trademark sign. Such as infinity sign, fractions, operators. The set of special symbols contains mainly mathematical signs.
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