EtiTheSpirit/BigDecimal

Reimplementation of Jan Christoph Bernack's BigDecimal. Implements INumber<T>

BigDecimal

This was originally made by Jan Christoph Bernack in the public domain. I have since adapted it to implement several new features, including:

• Implementation of INumber<T>
• Definition of Euler's constant BigDecimal.E
• Definition of Pi BigDecimal.Pi
• Definition of Tau BigDecimal.Tau
• Implementation of Sqrt (slow)
• Implementation of Factorial
• Implementation of FallingFactorial
• Implementation of casts to/from all primitive integer types.
• Implementation of casts to/from decimal using the native format of the type.
• Implementation of casts to/from Int128 and UInt128
• (Re)implementation of casts to/from Half, float, and double which use the native format of the type for roundtrip conversion accuracy.
• Implementation of ToStringDetailed, which outputs the entire value with all decimal places. It has optional parameters to limit the length.
• INumber<T> formatting provides a custom format option xRy(T) to output the real value, where x is the minimum number of decimal places and y is the maximum length of the returned string (not the numeric digits!)
  • This applies to string.Format too.
  • Typically y will be omitted.
  • To print with at least 10 decimal places of accuracy, use 10R
  • To print with exactly 10 decimal places of accuracy, use 10RT
• Implementation of Parse and TryParse.