Namespace Java.Math Classes BigDecimal https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/math/BigDecimal.html BigInteger https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/math/BigInteger.html MathContext https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/math/MathContext.html RoundingMode https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/math/RoundingMode.html