TABLE OF THE BESSEL FUNCTIONS Jo(Z) AND J1(Z) FOR COMPLEX ARGUMENTS

Shipping is additional. Media mail (book rate) is available in US only. Priority mail is also available (West Coast may be higher). Heavy books are usually noted in description and will have an additional postage charge. International shipping, please inquire. Please note that after 14 May 2007 the US Postal Service no longer ships surface to any other countries. All packages have to go by first class mail or Priority mail. I accept checks or money orders from the US only. International customers please use Paypal or credit card. Credit cards users must go through ABEbooks.com . Books are returnable if not as described. Pennsylvania residents must add 6% sales tax.

If you are a consumer you can withdraw from the contract in accordance with the following. Consumer means any natural person who is acting for purposes which are outside his trade, business, craft or profession.

Information regarding the right of withdrawal

Statutory right to withdraw

You have the right to withdraw from this contract within 14 days without giving any reason.

The withdrawal period will expire after 14 days from the day on which you acquire, or a third party other than the carrier and indicated by you acquires, physical possession of the last good or the last lot or piece.

To exercise the right of withdrawal, electronically fill in and submit a clear statement on our website, under "My Purchases" in "My Account". We will communicate to you an acknowledgement of receipt of such a withdrawal on a durable medium (e.g. by e-mail) without delay.

To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.

Effects of withdrawal

If you withdraw from this contract, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least expensive type of standard delivery offered by us).

We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.

We will make the reimbursement without undue delay, and not later than 14 days after the day on which we are informed about your decision to withdraw from this contract.

We will make the reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.

We may withhold reimbursement until we have received the goods back, or you have supplied evidence of having sent back the goods, whichever is the earliest.

You shall send back the goods or hand them over to Russ States, Seneca, Pennsylvania, U.S.A., without undue delay and in any event not later than 14 days from the day on which you communicate your withdrawal from this contract to us. The deadline is met if you send back the goods before the period of 14 days has expired. You will have to bear the direct cost of returning the goods. You are only liable for any diminished value of the goods resulting from the handling other than what is necessary to establish the nature, characteristics and functioning of the goods.

Exceptions to the right of withdrawal

The right of withdrawal does not apply to:

1. The delivery of newspapers, journals or magazines with the exception of subscription contracts; and
2. The supply of digital content which is not supplied on a tangible medium (e.g. on a CD or DVD) if you accepted when you placed your order that we could start to deliver it, and that you could not withdraw once delivery had started.

Mailing address: Russ States, P.O. Box 292, Seneca, PA 16346. Orders usually ship within 2 business days. Shipping costs are based on books weighing 2.2 LB, or 1 KG. Heavy books are usually noted in description and will have an additional postage charge. Shipping is additional. Media mail (book rate) is available in US only. Priority mail is also available (West Coast may be higher). International shipping, please inquire. Please note that after 14 May 2007 the US Postal Service no longer ships surface to any other countries. All international packages have to go by first class mail or Priority mail. Often books can fit into the Global Priority envelopes which have a standard fee up to 4 pounds. I will use this whenever possible & reduce the shipping costs accordingly.