[Haskell-beginners] How to convert a float or double number into a string?

[yi lu]

You are right! I hope to input a number, for example 123, and output its
text "one hundred and twenty-three".
So, for 1.23456789012345678901, I want the result is "one point two three
four five six ...(something omitted)".
I can define a funciton, say "toText", to preform this action.
In ghci, I can use like this.
Prelude>toText 123.45
"one hundred and twenty-three point four five"

However, in this function, I have to read this number as String(originally
a number, now "123"), and make it to words(String) like "one two three".
But for a float number, it will not work very well.
Prelude>toText 1.23456789012345678901
"(a truncated answer)"

This confuses me!

Yi


On Wed, Sep 18, 2013 at 10:23 PM, Oscar Benjamin <oscar.j.benjamin at gmail.com
> wrote:

>
> On Sep 18, 2013 2:15 PM, "yi lu" <zhiwudazhanjiangshi at gmail.com> wrote:
> >
> > In fact, I am not looking for some way to convert a float 0.75 to 3%4.
> Your reply is helpful!
> > What I need is just as much number of digits as possible. If I can hold
> as many digits of pi, i.e. 3.1415926535... as possible and save it in a
> String, it will be perfect!
>
> I think something is still missing from your description.
>
> If you want to store the digits of pi in a string then why not use a
> string?
>
> Oscar
>
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