STANDARD 1.1A1 Given a function *f*,
the limit of *f*(*x*) as *x* approaches *c*, is a real
number *R* if *f*(*x*) can be made arbitrarily close to *R*
by taking *x* sufficiently close to *c* (but not equal to *c*).
If the limit exists and is a real number, then the common notations is lim
*f*(*x*)=*R* as *x* approaches *c*. |