numerikoj
Numerikoj are the basic objects of counting, measurement, and calculation in mathematics, and they include both the abstract quantities and the symbols used to denote them. In everyday use, numerikoj enable us to compare, measure, and quantify things, as well as to perform arithmetic and model real-world phenomena.
In mathematics, numerikoj are organized into a hierarchy of number systems. Natural numbers (often including zero)
Numerals are the symbols used to write numerikoj. The most common system is decimal (base-10), which uses
Historically, numerikoj have evolved from early counting methods and varied writing schemes toward the Hindu-Arabic numeral