Welcome to this introductory tutorial on wavelet transforms. The wavelet transform is a. relatively new concept (about 10 years old), but yet there are quite a few articles and books. written on them. However, most of these books and articles are written by math people, for the. other math people; still most of the math people don't know what the other math people are.
Report Abuse. The credit card expires at the end of the month. The credit card company sends you a new card when the expiration date is one month away. Don't worry you will receive it soon. If you are not sure, call and ask them. Source(s): Experience from last summer.
Then you look down at the card and realize, with a mixture of relief and annoyance: Oh, this card expired yesterday. The short answer: Fraud prevention. The major networks (Visa and MasterCard) mandate that issuers (your bank or credit union, for example) put expiration dates on credit and debit cards. They're meant to serve as one more data point that needs to get verified before a charge goes through.