# Random Streams

Random stream (or stream) is an abstract source of pseudo- and quasi-random sequences of uniform distribution. Users have no direct access to these sequences and operate with stream state descriptors only. A stream state descriptor, which holds state descriptive information for a particular BRNG, is a necessary parameter in each routine of a distribution generator. Only the distribution generator routines operate with random streams directly. See VSL Notes for details.

### Note

Random streams associated with abstract basic random number generator are called the abstract random streams. See VSL Notes for detailed description of abstract streams and their use.

User can create unlimited number of random streams by VSL Service Routines like NewStream and utilize them in any distribution generator to get the sequence of numbers of given probability distribution. When they are no longer needed, the streams should be deleted calling service routine DeleteStream.

VSL provides service functions SaveStreamF and LoadStreamF to save random stream descriptive data to a binary file and to read this data from a binary file respectively. See VSL Notes for detailed description.

Parent topic: Basic Generators