NSNumberFormatter *numFormat = [[[NSNumberFormatter alloc] init] autorelease];
[numFormat setNumberStyle:kCFNumberFormatterDecimalStyle];
NSNumber *num = [NSNumber numberWithDouble:[self doubleValue]];
return [numFormat stringFromNumber:num];
[numFormat setNumberStyle:kCFNumberFormatterDecimalStyle];
NSNumber *num = [NSNumber numberWithDouble:[self doubleValue]];
return [numFormat stringFromNumber:num];
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