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-
Matrix
. build(row _ size , column _ size = row _ size) {|row , col| . . . } -> Matrix (12.0) -
row_size×column_sizeの行列をブロックの返り値から生成します。
...merator を返します。
//emlist[例][ruby]{
require 'matrix'
m = Matrix.build(2, 4) {|row, col| col - row }
# => Matrix[[0, 1, 2, 3], [-1, 0, 1, 2]]
m = Matrix.build(3) { rand }
# => a 3x3 matrix with random elements
//}
@param row_size 行列の行数
@param column_size 行列の列数...