I've got an idea...a number translator. You type in upto a four digit number, such as 9745 and it translates it into words, like this: nine-thousand seven hundred forty-five.
It should also be able to accept decimal numbers, like this 8.874, and return the words as: eight point eight seven four.
I should also be able to accept larger numbers, such as 9E-3 which should come out as: nine times ten to the power of negative three.
This is a really simple contest...but in the end goldbug, it's your decision...just throwing 'round ideas here 🙂