Creating implementation for idiom 23 : Convert real number to string with 2 decimal places

Idiom

# 23 Convert real number to string with 2 decimal places

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Given a real number x, create its string representation s with 2 decimal digits following the dot.

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#include <stdio.h>

sprintf(s, "%.2f", x);

#include <iomanip>
#include <sstream>

std::stringstream ss;
ss << std::fixed << std::setprecision(2) << x;
s = ss.str();

string s = $"{x:F2}";

import std.string;

string str = format("%.2s", x);

var s = x.toStringAsFixed(2);

s = Float.to_string(x, decimals: 2)

S = io_lib:format("~.2f", [X]).

  write (unit=s,fmt="(F20.2)") x

import "fmt"

s := fmt.Sprintf("%.2f", x)

s <- showFFloat (Just 2) x ""

num.toFixed(2)

String s = String.format("%.2f", x);

s = "%.2f".format(x)

s = string.format("%.2f",x)

$s = sprintf('%.2f', $x);

uses SysUtils;

s := format('%.2f',[ x]);

$s = sprintf "%.2f", $x;

s =  '{:.2f}'.format(x)

s = f'{x:.2f}'

s = "%.2f" % x

let s = format!("{:.2}", x);