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To implement the formatWithWidth:andFraction: method, you need the
truncated method. Whenever it is sent to a Float instance,
the truncated method answers with an
Integer instance equal to the truncated Float instance:
Workspace Transcript show: 3.14159 truncated printString Transcript 3
Using truncated and abs, the method that produces the
absolute value of a number, you can produce the fraction portion of a
floating-point number:
Transcript show: (3.14159 truncated - 3.14159) abs printString; cr;
show: (-3.14159 truncated - -3.14159) abs printString; cr
Transcript
0.14159
0.14159