Render a number into a string, based on the given quantities. This is useful for displaying quantities in terms of bytes or in SI units. Give this function the SizeOpts for the desired output, and a precision (number of digits to the right of the decimal point), and you get a string output.

Here are some examples:

 Data.Quantity> renderNum binaryOpts 0 1048576
 "1M"
 Data.Quantity> renderNum binaryOpts 2 10485760
 "10.00M"
 Data.Quantity> renderNum binaryOpts 3 1048576
 "1.000M"
 Data.Quantity> renderNum binaryOpts 3 1500000
 "1.431M"
 Data.Quantity> renderNum binaryOpts 2 (1500 ** 3)
 "3.14G"

 Data.Quantity> renderNum siOpts 2 1024
 "1.02k"
 Data.Quantity> renderNum siOpts 2 1048576
 "1.05M"
 Data.Quantity> renderNum siOpts 2 0.001
 "1.00m"
 Data.Quantity> renderNum siOpts 2 0.0001
 "100.00u"

If you want more control over the output, see quantifyNum.

Like renderNum, but operates on a list of numbers. The first number in the list will be evaluated for the suffix. The same suffix and scale will be used for the remaining items in the list. See renderNum for more examples.

Also, unlike renderNum, the %f instead of %g printf format is used so that "scientific" notation is avoided in the output.

Examples:

 *Data.Quantity> renderNums binaryOpts 3 [1500000, 10240, 104857600]
 ["1.431M","0.010M","100.000M"]
 *Data.Quantity> renderNums binaryOpts 3 [1500, 10240, 104857600]
 ["1.465K","10.000K","102400.000K"]