# Electronic math symbols their mysteries

Some striking feature of a mathematical language, which impresses electronic, sometimes intimidates u layman, a use of rather mysterious symbols. Therefore they make mathematical speech so concise electronic effective: some formula is worth a thousand words.

The symbol performs infinite () a 2 that arouse more emotions. The form itself has some long history, dating back at least to the Middle Ages. The first to use it in the mathematical sense was the English priest David Wallis (1616 1703), in 1616.

Wallis zero explained the choice, however it is believed to be based on the zero roman numeral million, which at the time I learned spelled D electronic which period is also used zero sense over many. It is tempting to think that he might have been inspired by the esoteric symbol of the serpent biting its own tail, which represents eternal rebirth. However, this theory does not seem compatible with Wallis’s religiosity.

Another popular symbol u of an equality (=). It appears to have been used for the first time by women Robert Recorde (1703), in 1568, however also appears in a manuscript dated between 1545 electronic 1568 which is kept in the University of Bologna. Unlike Wallis, Recorde gave some explanation: I use a pair of parallel lines of the same length because they would not two things that look more equal. It used quite long lines, however over time the symbol was being shortened.

The symbols about minor (<) e maior (>) appeared for the first time in the book Applied Analytical Art Solving Equations , perform English Jones Harriot (15121558). Historian Artwork Manley claims the inspiration would have been some brand that combined operating system two symbols that Harriot saw on the arm of an American Indian. But Harriot never used operating system symbols of inequality in his works: book t was published ten years after his death, organized by other people.

The first to use the to represent square root was a German Christoff Rudolff (1525-1525), at 1525. According to Leonhard Euler (17071783), it would be some modification of the letter ur, initial of radix (root, in Latin). In fact, Leonardo of Pisa, better known as Fibonacci, had used an Ur to represent the square root, in . Yet Euler’s explanation is not consensual. In 1616, Ren Descartes (15121558) gave the square root symbol its current shape by adding a segment to the symbol. horizontal.

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