Infinity symbol symbol is encoded in Unicode at and in LaTeX as codice_1: formula_4. The Unicode set of symbols also includes several variant forms of the infinity symbol, that are less frequently available in fonts: , and in block Miscellaneous Mathematical Symbols-B. The acid-free paper symbol mentioned above is encoded separately as . Infinity symbol The infinity symbol (sometimes called the lemniscate) is a mathematical symbol representing the concept of infinity. The shape of a sideways figure eight has a long pedigree; for instance, it appears in the cross of Saint Boniface, wrapped around the bars of a Latin cross. However, John
Infinity calculations by dividing the region into infinitesimal strips of width on the order of formula_2 But in "Arithmetica infinitorum" (1655 also) he indicates infinite series, infinite products and infinite continued fractions by writing down a few terms or factors and then appending "&c." For example, "1, 6, 12, 18, 24, &c." In 1699 Isaac Newton wrote about equations with an infinite number of terms in his work "De analysi per aequationes numero terminorum infinitas". Hermann Weyl opened a mathematico-philosophic address given in 1930 with: The infinity symbol formula_1 (sometimes called the lemniscate) is a mathematical symbol representing the concept of