symmetrical three-diagonal matrix
symmetrical three-diagonal matrix
对称三对角矩阵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.
用位移法计算连续梁、对称性荷载作用下的单跨多层刚架，总刚度阵为对称三对角阵。
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