Transpose prescriptions and calculate lens parameters
Transpose prescriptions and calculate compensated powers for tilt and vertex distance. Estimate blank size and lens thickness. View detailed equations and study references for additional insights.
The app presents musical instruments through flashcards for children's learning. It includes over 60 instrument pictures and audio, offering an easy-to-use experience for identifying instruments and their sounds.
The app presents a triple horizontal system for playing guitar modes using a 3-notes-per-string approach. It offers an extended fingering system for performing modes across multiple octaves, suitable for various musical genres and skill levels.
The app presents 50 musical instrument videos for children. Each instrument has four 10-20 second clips, showcasing various performances and classical music pieces.
Tune instruments with a built-in . Select from guitar, bass, ukulele, and other instruments. Play each note in standard tuning. Adjust pitch and save custom settings. Share tuning results.
Play music files including MIDI, Kar, MP3, WAV, CD-G, and TXT/PDF with key transpose, tempo changes, and instrument adjustments. Supports MP4 and 3GP video playback. Add text, images, or PDFs to audio files. Disable auto-play for manual adjustments.
The app allows users to play General MIDI instruments using a mouse, computer keyboard, or MIDI device. It plays type 1 General MIDI files and supports non-US keyboards.