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Round a double to 2 decimal places [duplicate]
...) throw new IllegalArgumentException();
long factor = (long) Math.pow(10, places);
value = value * factor;
long tmp = Math.round(value);
return (double) tmp / factor;
}
This breaks down badly in corner cases with either a very high number of decimal places (e.g. round(1000.0d, 17)...
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answered Dec 18 '10 at 21:15
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edited Feb 3 '10 at 2:09
answered Nov 20 '08 at 21:58
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How do you check in python whether a string contains only numbers?
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