![[ICO]](/icons/blank.gif){kind=icon}
![[PARENTDIR]](/icons/back.gif){kind=icon}
![[IMG]](/icons/image2.gif){kind=icon}
| Name | Last modified | Size | Description |
|---|---|---|---|---|
| Parent Directory | - | ||
| allpositions.png | 2025-01-31 12:26 | 29K | |
| bg1.jpg | 2025-01-31 12:26 | 54K | |
| bg2.jpg | 2025-01-31 12:26 | 39K | |
| bg3.jpg | 2025-01-31 12:26 | 49K | |
| bg4.jpg | 2025-01-31 12:26 | 46K | |
| concavecentreofcurve.png | 2025-01-31 12:26 | 6.0K | |
| concavecentreofcurvecircle.png | 2025-01-31 12:26 | 14K | |
| concavefocus.png | 2025-01-31 12:26 | 6.0K | |
| concavemirror.png | 2025-01-31 12:26 | 111K | |
| concavemirrorfindcurve.png | 2025-01-31 12:26 | 95K | |
| concavemirrorsketch.png | 2025-01-31 12:26 | 4.7K | |
| concaveprincipalaxis.png | 2025-01-31 12:26 | 5.8K | |
