原題與已知條件
unit-interval path的continuity、兩端點與全range containment責任。操作=path-box-linear;資料={"lower":[-18,-19,-20],"upper":[19,20,21],"start":[-17,-18,-19],"end":[18,19,20]}。請依 exact_ordered_tuple_declared_by_interface 欄序回答。
G001 — unit-interval path的continuity、兩端點與全range containment責任。操作=path-box-linear;資料={"lower":[-18,-19,-20],"upper":[19,20,21],"start":[-17,-18,-19],"end":[18,19,20]}。請依 exact_ordered_tuple_declared_by_interface 欄序回答。
逐步推導
S001 · implies
操作前
source roles = [path-box-linear]
操作後
derived = [[lower, upper, start, end, formulas, continuous_path, certificate]]
條件:無
直接列出此操作及mode的完整來源欄序,不需JavaScript;布林、字串與null角色保持區別,不補欄或以答案形狀猜介面。
步驟識別與依賴
規則:source_ordered_fields_without_JS · 依賴:G001
S002 · implies
操作前
source roles = [[-18, -19, -20], [19, 20, 21], [-17, -18, -19], [18, 19, 20]]
操作後
derived = [3, 是]
條件:無
逐每座標驗上下界與兩endpoint包含,維度須完全相同;允許退化座標與反向走。
步驟識別與依賴
規則:Path_ALL_coordinate_endpoint_premises · 依賴:G001, S001
S003 · calculation
操作前
Path coordinate0 ORIGINAL end minus start := sub(18, -17)
操作後
Path coordinate0 ORIGINAL end minus start = 35
條件:無
以原始角色精確代值並保留符號運算;不用浮點近似,也不因額外教學運算縮小原題域。
步驟識別與依賴
規則:exact_rational_arithmetic · 依賴:G001, S002
S004 · implies
操作前
source roles = [0, -18, 19, -17, 18, 35]
操作後
derived = [gamma_i(t)=(1-t)*start_i+t*end_i, 0<=t<=1, -18, 19, -17, 18]
條件:無
對所有t∈[0,1],(1-t),t非負且和為1,故此座標夾在兩endpoint間且仍在[lower,upper];affine函數連續,不是只驗endpoint。
步驟識別與依賴
規則:Path_WHOLE_coordinate_convex_range_and_continuity · 依賴:G001, S003
S005 · calculation
操作前
Path coordinate1 ORIGINAL end minus start := sub(19, -18)
操作後
Path coordinate1 ORIGINAL end minus start = 37
條件:無
以原始角色精確代值並保留符號運算;不用浮點近似,也不因額外教學運算縮小原題域。
步驟識別與依賴
規則:exact_rational_arithmetic · 依賴:G001, S004
S006 · implies
操作前
source roles = [1, -19, 20, -18, 19, 37]
操作後
derived = [gamma_i(t)=(1-t)*start_i+t*end_i, 0<=t<=1, -19, 20, -18, 19]
條件:無
對所有t∈[0,1],(1-t),t非負且和為1,故此座標夾在兩endpoint間且仍在[lower,upper];affine函數連續,不是只驗endpoint。
步驟識別與依賴
規則:Path_WHOLE_coordinate_convex_range_and_continuity · 依賴:G001, S005
S007 · calculation
操作前
Path coordinate2 ORIGINAL end minus start := sub(20, -19)
操作後
Path coordinate2 ORIGINAL end minus start = 39
條件:無
以原始角色精確代值並保留符號運算;不用浮點近似,也不因額外教學運算縮小原題域。
步驟識別與依賴
規則:exact_rational_arithmetic · 依賴:G001, S006
S008 · implies
操作前
source roles = [2, -20, 21, -19, 20, 39]
操作後
derived = [gamma_i(t)=(1-t)*start_i+t*end_i, 0<=t<=1, -20, 21, -19, 20]
條件:無
對所有t∈[0,1],(1-t),t非負且和為1,故此座標夾在兩endpoint間且仍在[lower,upper];affine函數連續,不是只驗endpoint。
步驟識別與依賴
規則:Path_WHOLE_coordinate_convex_range_and_continuity · 依賴:G001, S007
結論
([-18, -19, -20], [19, 20, 21], [-17, -18, -19], [18, 19, 20], [-17+(35)t, -18+(37)t, -19+(39)t], 是, coordinatewise_convex_combination_stays_in_box)
依上列完整代值及條件核對得到原題答案;原題編號、格式與狀態保持不變。