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495: Mainline 
 

Now, you can assemble part of a string with the correct characteristics by 
first converting the truncated Float instance to a string:

self truncated printString , '.' 




Then, to add the post–decimal-point digits, you repeatedly multiply the 
fractional part by 10 to push the required fractional digits to the left of 
the decimal point:

fraction := (self - self truncated) abs. 
f timesRepeat: [fraction := 10 * fraction. 
^               ./]. 
| 
*-- argument of andFraction: 




Then, truncating the result, taking the absolute value, and converting to a 
string produces a digit ready for concatenation:

fraction := (self - self truncated) abs. 
f timesRepeat: [fraction := 10 * fraction. 
                string := string , fraction truncated printString. 
                ./].