Problem Statement

Ordinal numbers   (as used in this Rosetta Code task),   are numbers that describe the   position   of something in a list. It is this context that ordinal numbers will be used, using an English-spelled name of an ordinal number.

The ordinal numbers are   (at least, one form of them): sometimes expressed as:

For this task, the following (English-spelled form) will be used:

Furthermore, the short scale numbering system (i.e. 2,000,000,000 is two billion) will be used here. wp:Long and short scales 2,000,000,000   is two billion,   not   two milliard.

Write a driver and a function (subroutine/routine ···) that returns the English-spelled ordinal version of a specified number   (a positive integer). Optionally, try to support as many forms of an integer that can be expressed:   123   00123.0   1.23e2   all are forms of the same integer. Show all output here.

Use (at least) the test cases of:

Let's start with the solution: