Revolutionary knowledge-based programming language.
Computation-powered interactive documents.
Semantic framework for real-world data.
Central infrastructure for Wolfram's cloud products & services.
Software engine implementing the Wolfram Language.
Instant deployment across cloud, desktop, mobile, and more.
Technology-enabling science of the computational universe.
Knowledge-based, broadly deployed natural language.
Curated computable knowledge powering Wolfram|Alpha.
Instant-use add-on functions for the Wolfram Language
Test if a stream is open.
returns True if stream is opened and False otherwise.
Open in Wolfram Cloud
Download Example Notebook
Test if a stream is open:
Open another stream: