按照平差变换理论，只有满秩变换，才能得到与原观测完全等价的平差结果。
By the transformation theory of the adjustment, only the full rank transformation could get a full equivalent adjustment result to original observations.
本文给出了化不含平方项的两类特殊二次型为标准形的一种直接选取满秩线性变换法。
The paper teus a direct way to select nonsingular linear transformation by changing two special quadratic forms without square terms to the standard form.
运用初等变换方法探讨了数量对合矩阵的若干秩等式。
The paper get some rank equalities of scalar-involutory matrices by elementary operation.
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