CALCULUS Understanding Its Concepts and Methods

Limit, one-sided

We say
that the limit of
*f*(*x*)
as *x*
approaches *
a* from the right is equal to
*L* and
writeif
*f*(*x*)
gets close to
*L*
as
*x*
gets close to
*a*
and
*x* > *a*.

We say
that the limit of
*f*(*x*)
as *x*
approaches *
a* from the left is equal to
*L* and
writeif
*f*(*x*)
gets close to
*L*
as
*x*
gets close to
*a*
and
*x* < *a*.

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Copyright © 2006 Darel Hardy, Fred Richman, Carol Walker, Robert Wisner. All rights reserved. Except upon the express prior permission in writing, from the authors, no part of this work may be reproduced, transcribed, stored electronically, or transmitted in any form by any method.