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# kyonifer / koma

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 import koma.* import koma.extensions.* import koma.matrix.Matrix import koma.matrix.cblas.CBlasMatrixFactory fun main(args: Array) { Matrix.doubleFactory = CBlasMatrixFactory() val m1 = zeros(3,3)+2 val m2 = ones(3,3)+3 val m3 = m1*2+m2/2 println(m1) println(m2) m3[0,1] = 12345.0 println(m3) println(eye(3)+6) println(randn(2,2)) println(mat[1,2]) println(mat[3,4].T) println(mat[3 end 4]) println(zeros(2,1)) println(mat[1,2]*mat[3,4].T) println("Matrix mult:") val a1 = mat[1, 2 end 3, 4] val a2 = mat[4, 5 end 3, 2] println(a1*a2) println("Cholesky decomp:") val c = (mat[4,1 end 1,6]).chol() println(c) println(c*c.T) println("LU decomp:") val (p, l, u) = mat[1, 2 end 2,1].LU() println(p) println(l) println(u) println("Inverse:") println(eye(3)*4) val inv = (eye(3)*4).inv() println(inv) println(eye(3)*4*inv) println("1-Norm:") println(mat[1,2 end 3,4 end 5,6].normIndP1()) println("F-Norm:") println(mat[1,2 end 3,4 end 5,6].normF()) println("expm:") println(expm(mat[1,2,3 end 4,5,6 end 7,8,9])) println("randn(5,6): \n\${randn(5,6).repr()}") var a = mat[1,2,3 end 4,5,6] var b = mat[2, 0 end 0, 1 end -1, 5] println("a: \n\${a.repr()}") println("b: \n\${b.repr()}") println("a*b: \n\${(a*b).repr()}") }