Spell and pronounce words by speaking into the . Get instant spelling corrections and audio pronunciations. Learn word definitions and example sentences. Practice spelling through interactive quizzes. Sync progress across devices.
Calculate magnification, exit pupil, true field of view, and f-ratio based on aperture, focal length, and type. Color badges indicate optimal viewing conditions. Results update in real time as inputs change.
Calculate tips with preset percentages or a custom slider for precise adjustments. Split bills among 1-50 people to determine individual shares. View real-time totals including tip and final amount.
