Decimal floating point arithmetic. The focus of this module is the [[Decimal]] type which performs computations using decimal floating point arithmetic. An of `Decimal` may be obtained by calling [[decimalNumber]] or [[parseDecimal]]. A [[Rounding]] is used to specify how results of calculations should be rounded, and an instance may be obtained by calling [[round]]. The [[implicitRounding]] function may be used to associate a [[Rounding]] with a computation, performing the whole ...