method
build
v2_1_10 -
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Class: Matrix
- 1_8_6_287
- 1_8_7_72
- 1_8_7_330
- 1_9_1_378
- 1_9_2_180 (0)
- 1_9_3_125 (0)
- 1_9_3_392 (0)
- 2_1_10 (38)
- 2_2_9 (0)
- 2_4_6 (0)
- 2_5_5 (0)
- 2_6_3 (0)
- What's this?
build(row_count, column_count = row_count)
public
Creates a matrix of size row_count x column_count. It fills the values by calling the given block, passing the current row and column. Returns an enumerator if no block is given.
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