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v0.3.0-dev-9 #324

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altavir merged 265 commits from dev into master 2021-05-08 17:16:29 +03:00
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1 changed files with 2 additions and 6 deletions
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kmath-core/src/commonMain/kotlin/space/kscience/kmath/tensors/core/DoubleLinearOpsTensorAlgebra.kt
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@ -183,11 +183,7 @@ public class DoubleLinearOpsTensorAlgebra :
} }
private fun MutableStructure1D<Double>.l2Norm(): Double { private fun MutableStructure1D<Double>.l2Norm(): Double {
var squareSum = 0.0 return sqrt((0 until size).sumOf { this[it] * this[it] })
for (i in 0 until size) {
squareSum += this[i] * this[i]
}
return sqrt(squareSum)
} }
fun qrHelper( fun qrHelper(
@ -223,7 +219,7 @@ public class DoubleLinearOpsTensorAlgebra :
val (q, r) = qr val (q, r) = qr
qrHelper(matrix.as2D(), q.as2D(), r.as2D()) qrHelper(matrix.as2D(), q.as2D(), r.as2D())
} }
return Pair(qTensor, rTensor) return qTensor to rTensor
} }
override fun DoubleTensor.svd(): Triple<DoubleTensor, DoubleTensor, DoubleTensor> { override fun DoubleTensor.svd(): Triple<DoubleTensor, DoubleTensor, DoubleTensor> {