InitializerFoundationEssentials
init(sign:exponent:significand:)
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
Creates a decimal initialized with the given sign, exponent, and significand.
init(sign: FloatingPointSign, exponent: Int, significand: Decimal)