| 摘要 |
<p>When a matrix multiplication formula including a matrix (A) of n×n or n×m, multiplication sign "×", and matrix (B) of n×n or n×m is input and displayed, and a first parting line (d1) configured to partition columns is input and displayed in the case of the matrix (A) on the left side of the multiplication, or a first parting line (d1) configured to partition rows is input and displayed in the case of the matrix (B) on the right side of the multiplication, then, on the basis of a definition of a product of matrices stating that the number of columns of a left matrix and the number of rows of a right matrix be equal to each other, a second parting line (d2) configured to partition the rows of the right matrix (B) or a second parting line (d2) configured to partition the columns of the left matrix (A) is distinguishably displayed, whereby a multiplication formula based on the partitioned matrices (A and B) is created and displayed. Accordingly, it is possible to create the correct partitioned matrices (A and B) conforming to the definition of a product of matrices.</p> |
