TRAITE DES FONCTIONS ELLIPTIQUES ET DE LEURS APPLICATIONS

Tel: 01291 689755. Payment with order. We accept most major Credit and Debit cards including Amex. and PayPal. Orders paid via paypal will be shipped to the address details given with the paypal payment which must be paid on receipt of invoice from us. Our objective is to get the book in the post to you within one working day. Returns: We do our best to make sure that all of our books are described accurately. Books can be returned within 14 days of receipt. If a book is found to be substantially not as described then we shall provide a full refund including return postage otherwise you shall be responsible for cost of return postage. Please phone or email before returning any item. An immediate refund will be given on receipt of any books returned. Contact: Sonia Bryant, Stella Books, Monmouth Road, Tintern, NP16 6SE Phone: 01291689755 Email: orders@stellabooks.com VAT No: GB667042236

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 Stella & Rose's Books, PBFA, Tintern, MON, United Kingdom, +44 01291689755, 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.

Orders usually ship within 1 business day. UK customers: we offer a flat rate postage, same cost regardless of how many books ordered. Outside UK: Shipping costs are based on books weighing up to 1KG or 2.2lbs. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required. All books are sent using Royal Mail or Parcelforce.

Note for US Buyers: From August 29, 2025, all UK-origin shipments to the United States are subject to customs processing. Printed books remain duty-free under US law, but some states may charge sales tax or handling fees on delivery. Delivery times may be slightly longer due to customs clearance

Returns: We do our best to make sure that all of our books are described accurately. Books can be returned within 14 days of receipt. If a book is found to be substantially not as described then we shall provide a full refund including return postage otherwise you shall be responsible for cost of return postage. Please phone or email before returning any item. An immediate refund will be given on receipt of any books returned. Contact: Sonia Bryant, Stella Books, Monmouth Road, Tintern, NP16 6SE Phone: 01291689755 Email: orders@stellabooks.com VAT No: GB667042236