1. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu-d Jasem Mutlaq 2. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu Jasem Mutlaq 3. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu-d Jasem Mutlaq 4. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu Jasem Mutlaq 5. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu-d Hy Murveit 6. 2019-12-25 D26218: Improve Linear Focus Algorithm by adding extr kde-edu Hy Murveit