Step by Step solution about How to resolve the algorithm Formatted numeric output step by step in the Haskell programming language

This Haskell code demonstrates how to format a floating-point number with specific formatting options using the printf function.

• import Text.Printf: Imports the Printf module, which provides functions for formatted output in Haskell.

• main = : Defines the main function, which is the entry point for Haskell programs.

• printf "%09.3f" 7.125: This line uses the printf function to format the floating-point number 7.125 according to the specified format string:

  • %09.3f: This format string specifies the following:

    • %f: Specifies that it's a floating-point number format.
    • 09: Specifies a minimum field width of 9 characters.
    • .3: Specifies that it should display three decimal places.

  • 7.125: This is the actual floating-point number to be formatted.

The output of this program will be a formatted string "007.125". The number is printed with a total field width of 9 characters, padded with zeros on the left, and with 3 decimal places.

import Text.Printf
main =
  printf "%09.3f" 7.125