The Wolfram Language immediately allows you to do arithmetic not only with individual numbers, but also with arbitrary lists or arrays—as well as symbolic and algebraic forms. The Wolfram Language uses the latest platform-optimized algorithms to work with exact and approximate numbers up to billions of digits, as well as polynomials with millions of terms.
Sqrt — square root, entered as using Ctrl+@
Total — total of elements in a list
Mean — mean of a list
Accumulate — cumulative sums in a list
Differences — successive differences in a list
Ratios — successive ratios in a list