---
title: "NSDecimalMultiplyByPowerOf10(_:_:_:_:)"
framework: foundation
role: symbol
role_heading: Function
path: "foundation/nsdecimalmultiplybypowerof10(_:_:_:_:)"
---

# NSDecimalMultiplyByPowerOf10(_:_:_:_:)

Multiplies a decimal by the specified power of 10.

## Declaration

```swift
func NSDecimalMultiplyByPowerOf10(_ result: UnsafeMutablePointer<Decimal>, _ number: UnsafePointer<Decimal>, _ power: Int16, _ roundingMode: NSDecimalNumber.RoundingMode) -> NSDecimalNumber.CalculationError
```

## Discussion

Discussion Multiplies number by power of 10 and stores the product, possibly rounded off according to roundingMode, in result. For explanations of the possible return values and rounding modes, see NSDecimalAdd(_:_:_:_:). For more information, see Number and Value Programming Topics.

## See Also

### Performing arithmetic using references

- [NSDecimalCompact(_:)](foundation/nsdecimalcompact(_:).md)
- [NSDecimalAdd(_:_:_:_:)](foundation/nsdecimaladd(_:_:_:_:).md)
- [NSDecimalSubtract(_:_:_:_:)](foundation/nsdecimalsubtract(_:_:_:_:).md)
- [NSDecimalDivide(_:_:_:_:)](foundation/nsdecimaldivide(_:_:_:_:).md)
- [NSDecimalMultiply(_:_:_:_:)](foundation/nsdecimalmultiply(_:_:_:_:).md)
- [NSDecimalRound(_:_:_:_:)](foundation/nsdecimalround(_:_:_:_:).md)
- [NSDecimalPower(_:_:_:_:)](foundation/nsdecimalpower(_:_:_:_:).md)
- [NSDecimalNormalize(_:_:_:)](foundation/nsdecimalnormalize(_:_:_:).md)
- [Decimal.RoundingMode](foundation/decimal/roundingmode.md)
- [NSDecimalNumber.RoundingMode](foundation/nsdecimalnumber/roundingmode.md)
- [Decimal.CalculationError](foundation/decimal/calculationerror.md)
- [NSDecimalNumber.CalculationError](foundation/nsdecimalnumber/calculationerror.md)