Calculus Algorithm Expert Needed - 28/02/2024 08:31 EST

The task at hand is simple. I have a set of keys between 1 to 10. [Example: [1, 5, 3, 5, 3, 2, 2, 1](This is not a real example)]. I want to convert all the keys into one number and represent that number in scientific notation with 16 characters of precision and 48 characters of exponential maximum. Then using the final scientific notated number value; I want to extrappolate the keys. I do not want to contenate the keys. I do not want to use a library. I want a custom solution in Mathematics. Quotes only underneath $100.00 please.