VALIDCREDITCARD

Returns a Boolean value (TRUE or FALSE), determines whether a specified credit card number is a valid one.

Syntax

VALIDCREDITCARD(card_num)

card_num - the credit card number to be validated.

Special Note

The calculation of this function is based on the author's limited knowledge in the topic concerned. This function is only a demonstration of programming techniques. It is not expected to be used in any business situations for the validation of credit card numbers.

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