INDEX>Foundation>NSDecimalNumber 十進数オブジェクトを仮数、ベキ指数で作って返します Objective-C +(NSDecimalNumber *)decimalNumberWithMantissa:(unsigned long long)mantissa: exponent:(short)exponent: isNegative:(BOOL)inNegative: Swift なし …

decimalNumberWithMantissa:exponent:isNegative: