Search results
Results From The WOW.Com Content Network
In mathematics, a variable (from Latin variabilis, "changeable") is a symbol, typically a letter, that refers to an unspecified mathematical object. [1] [2] [3] One says colloquially that the variable represents or denotes the object, and that any valid candidate for the object is the value of the variable.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, ... If x is a variable depending on time, ...
Use of the letter x for an independent variable or unknown value. See History of algebra: The symbol x. 1637 [2] René Descartes (La Géométrie) √ ̅ .
A symbol that stands for an arbitrary input is called an independent variable, while a symbol that stands for an arbitrary output is called a dependent variable. [6] The most common symbol for the input is x, and the most common symbol for the output is y; the function itself is commonly written y = f(x). [6] [7]
The Letterlike Symbols block (U+2100–U+214F) includes variables. Most alphabetic math symbols are in the Mathematical Alphanumeric Symbols block shown above.
In mathematical typesetting, x meaning an algebraic variable is normally in italic type (), partly to avoid confusion with the multiplication symbol. In fonts containing both x (the letter) and × (the multiplication sign), the two glyphs are dissimilar.
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
This is a list of common physical constants and variables, and their notations. ... Symbol Meaning SI unit of measure magnetic vector potential: tesla meter (T⋅m ...