29 lines
677 B
Text
29 lines
677 B
Text
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// version 1.1.3
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typealias Vector = DoubleArray
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typealias Matrix = Array<Vector>
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fun Matrix.transpose(): Matrix {
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val rows = this.size
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val cols = this[0].size
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val trans = Matrix(cols) { Vector(rows) }
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for (i in 0 until cols) {
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for (j in 0 until rows) trans[i][j] = this[j][i]
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}
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return trans
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}
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fun printMatrix(m: Matrix) {
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for (i in 0 until m.size) println(m[i].contentToString())
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}
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fun main(args: Array<String>) {
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val m = arrayOf(
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doubleArrayOf( 1.0, 2.0, 3.0),
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doubleArrayOf( 4.0, 5.0, 6.0),
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doubleArrayOf( 7.0, 8.0, 9.0),
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doubleArrayOf(10.0, 11.0, 12.0)
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)
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printMatrix(m.transpose())
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}
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