大地测量学 - 2026 进行中

科目: 大地测量学
级别: XII
类别: 大学生
测试题目: 英语
问题示例: In a free-network least-squares adjustment, which mathematical feature of the normal-equation matrix necessitates the use of constraints or a datum definition? It contains only integer coefficients, It is always positive definite without exceptions, It is rank-deficient because datum transformations remain undetermined, It has more independent equations than unknowns