Create business calculators for custom calculations. Input formulas similar to spreadsheets. Save and reuse calculators for recurring tasks. Perform complex computations quickly. Export results and share calculations.
Find local businesses and deals in North America. Search for companies nearby, view product descriptions, contact information, and prices. Make calls, view details, and access promotions with quick navigation.
Play as an HIV-1 virion to infect CD4 cells within a time limit. Track infection progress and manage resources. Learn about HIV biology through interactive gameplay. Share scores and compare results with others.
