This function of x equals the "square root of x-squared."
This function's properties include being "multiplicative," "subadditive" and "positive definite." This piecewise linear function is differentiable everywhere except 0. For complex numbers in polar form, this quantity is symbolized r. This function's properties are generalized by metrics and norms, since this function of "x minus y" gives the number-line (*) distance between x and y. This function of "x plus y" is less than or equal to "this function of x" plus "this function of y," by the triangle inequality. This function of x equals the "square root of x-squared." For 10 points, name this function that gives the value of a number without its sign, denoted by vertical bars.
This function's properties include being "multiplicative," "subadditive" and "positive definite.
absolute value [or modulus; or magnitude; prompt on “value”] &lt;JR&gt; Tiebreaker