object is beyond the curvature's center. Image made by me; send-me an e-mail if you want the source (SVG). English determination method or standard: SHA-1...
Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license. You are free: to share – to copy, distribute and transmit...
Attribution-Share Alike 4.0 truetrue English Hollow and convex angle Italian Angolo concavo ed angolo convesso URL: https://commons.wikimedia.org/wiki/User:Mattruffoni...
Attribution-Share Alike 4.0 truetrue English concave polygon Italian poligono concavo author name string: Mattruffoni Wikimedia username: Mattruffoni URL: https://commons...
Attribution-Share Alike 4.0 truetrue English Hollow and convex angle Italian Angolo concavo ed angolo convesso con lettere author name string: Mattruffoni Wikimedia...
4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English The concavo-convex or "meniscus" lens is thicker in the middle, so it has a positive...
English determination method or standard: SHA-1...
Diagram of a concave (convergent) mirror. Portuguese Diagrama de um espelho côncavo (convergente). author name string: WiredAlexandria Wikimedia username:...
the curvature's center and the focus. Image made by me; send-me an e-mail if you want the source (SVG). English determination method or standard: SHA-1...
is between the vertex and the focus. Image made by me; send-me an e-mail if you want the source (SVG). English determination method or standard: SHA-1...
