longdouble contains an implementation of 106 bit precision floating point and associated mathematical operations. It is intended mainly to preserve robustness in calculations of values stored in a double format, rather than to provide a high precision numeric type in it's own right.
Add longdouble to the pubspec.yaml file in the main directory of your application
Contains the longdouble class definition
Contains various mathematical operations on the longdouble datatype,
with an api similar to the dart:math library