Credit Card Number CheckThe last digit of a credit card number is the check digitwhich protects against transcription errors such as an error in a single digit or switching two digits. The following method is used to verify actual credit card numbers but, for simplicity, we will describe it for numbers with 8 digits instead of 16: Starting from the rightmost digit, form the sum of every other digit. For example, if the credit card number is 4358 9795, then you form the sum 5 + 7 + 8 + 3 = 23 . Double each of the digits that were not included in the preceding step. Add all digits of the resulting numbers . For example, with the number given above, doubling the digits. starting with the next-to-last one, yields 18 18 10 8. Adding all digits in these values yields 1 + 8 + 1 + 8 + 1 + 0 + 8 = 27 Add the sums of the two preceding steps . If the last digit of the result is 0, the number is valid . In our case , 23 + 27 = 50 , so the number is valid . Write a program that implements this algorithm . The user should supply an 8-digit number , and you should print out whether the number is valid or not. If it is not valid , you should print the value of the check digit that would make it valid .
Max Function
Statistical function is of many categories. One of them is a MAX function. The MAX function returns the largest value from the list of arguments passed to it. MAX function always ignores the empty cells when performing the calculation.
Power Function
A power function is a type of single-term function. Its definition states that it is a variable containing a base value raised to a constant value acting as an exponent. This variable may also have a coefficient. For instance, the area of a circle can be given as:
Credit Card Number CheckThe last digit of a credit card number is the check digitwhich protects against transcription errors such as an error in a single digit or switching two digits. The following method is used to verify actual credit card numbers but, for simplicity, we will describe it for numbers with 8 digits instead of 16: Starting from the rightmost digit, form the sum of every other digit. For example, if the credit card number is 4358 9795, then you form the sum 5 + 7 + 8 + 3 = 23 . Double each of the digits that were not included in the preceding step. Add all digits of the resulting numbers . For example, with the number given above, doubling the digits. starting with the next-to-last one, yields 18 18 10 8. Adding all digits in these values yields 1 + 8 + 1 + 8 + 1 + 0 + 8 = 27 Add the sums of the two preceding steps . If the last digit of the result is 0, the number is valid . In our case , 23 + 27 = 50 , so the number is valid . Write a
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