Data.SciRatio.Show

The functions here pretty-print numbers in a compact format. Examples:

>>> showSciRational (-0.0e+3)         -- result: "0"
>>> showSciRational (0.25e+2)         -- result: "25"
>>> showSciRational (-1.0e-1)         -- result: "-.1"
>>> showSciRational (5.0e+20 / 6)     -- result: "2.5e20/3"
>>> showSciRational (0xfeedface)      -- result: "4277009102"
>>> showSciRational (1 .^ 99999999)   -- result: "1e99999999"

Note: Without taking optimizations into account, the specialized functions (showSciRational and showsSciRational) are much more efficient than the generic functions (showNumber and showsNumber respectively).

Simple pretty-printers

showNumber :: Real a => a -> String

Show a number (see showsNumber).

Note: for SciRational, consider using the more efficient, specialized function showSciRational instead.

showSciRational :: SciRational -> String

Show a number (see showsNumber).

ShowS pretty-printers

showsNumber :: Real a => a -> ShowS

Show a rational number in scientific notation:

[-+]?
( [0-9]+ [.]? [0-9]* | [.] [0-9]+ )
( [e] [-+]? [0-9]+ )?
( [/] [0-9]+ )?

Note: for SciRational, consider using the more efficient, specialized function showsSciRational instead.

showsSciRational :: SciRational -> ShowS

Show a number (see showNumber).