Sure the 16-cell battery weighs a pound more than the 8-cell battery, but this is for patients that donât mind a little additional weight tacked onto their G3 in exchange for a longer time with friends and family without running out of oxygen.
An explicit definition of a function f gives an algorithmic procedure, usually given by an algebraic formula, that produces the output (dependent variable) of f for a given input (independent variable); for example, f(x) = x2.
1 The symbolic assertion $x^2-x-2=0$ is true for the numbers $x=-1$ and $x=2$, but not for any other number. $ 2 x^2-y^2=(x-y)(x+y)$ is a symbolic assertion with two variables. 3  It is true for all numbers $x$ and $y$. 4  Such a thing is commonly called an algebraic identity or identity relation.