[Newbies] Rouding Floats up to a number of decimals - Method Finder

[cdrick]

I couldn't find such a function. I tryed in the method finder but find
nothing:      MethodFinder methodFor: #(#(1.2288 3) 1.228).

Do somebody know if such a method exist ?

Meanwhile I did that:

Float>>trimAfter: aNumberOfDecimal   "roundAfter:"
| number |
number := 10 raisedTo: aNumberOfDecimal.
^(self * 10^aNumber) truncated "rounded" / 10^aNumber asFloat

and still MethodFinder methodFor: #(#(1.2288 3) 1.228) returns  '(no
single method does that function) '
whereas 1.2288 roundedAfter: 3 returns 1.229

Does anybody know what was wrong in my method finder use ?

Thanks

Cédrick