The Delphi TStringList class is very handy for storing, manipulating and managing lists of strings. TRealList provides similar functionality for the storage, manipulation and management of lists of real numbers.
https://www.explainth.at/wp-content/uploads/2018/03/redem.pdf
Usage:Create an instance of TRealList whenever you need to store a sequence of floating-piont, real, numbers. Use TRealList methods and properties to manage your entries. Remember to free the instance once you are done.