Patent ID: 9262379
Filing Date: 2016-02-16
CPC Classification: G06F,G09B

Claim Text:
1. A matrix calculation device comprising: a matrix multiplication formula display unit configured to display on a display section a matrix multiplication formula including a left matrix having matrix elements of a plurality of columns, a right matrix having matrix elements of a plurality of rows, and a multiplication sign between the left matrix and the right matrix; a matrix partitioning unit configured to partition one matrix from among the left and right matrices of the matrix multiplication formula displayed by the matrix multiplication formula display unit into a plurality of first minors in accordance with a user operation; a partition position determination unit configured to determine, based on a partition position where said one matrix has been partitioned into the plurality of first minors by the matrix partition unit and based on a definition of a product of matrices, a partition position where the other of the left and right matrices is to be partitioned into a plurality of second minors; a minor specifying unit configured to specify minors which are any ones of (i) the plurality of first minors into which said one matrix has been partitioned by the matrix partitioning unit, and (ii) the plurality of second minors into which the other matrix is to be partitioned at the partition position determined by the partition position determination unit, in accordance with a user operation; and a minor replacement/display unit configured to replace matrix elements corresponding to the minors specified by the minor specifying unit with respective minor names which are formed by adding subscripts corresponding to matrix positions of the minors to matrix names of the matrices to which the minors belong, and to display the respective minor names.