kscience/kmath
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Merge branch 'dev' into gsl-experiment

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Iaroslav Postovalov 2020-11-30 01:20:52 +07:00
commit df4ea2c1e4
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10
kmath-for-real/src/commonMain/kotlin/kscience/kmath/real/RealVector.kt
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@ -3,16 +3,26 @@ package kscience.kmath.real
import kscience.kmath.linear.Point import kscience.kmath.linear.Point
import kscience.kmath.operations.Norm import kscience.kmath.operations.Norm
import kscience.kmath.structures.Buffer import kscience.kmath.structures.Buffer
import kscience.kmath.structures.RealBuffer
import kscience.kmath.structures.asBuffer
import kscience.kmath.structures.asIterable import kscience.kmath.structures.asIterable
import kotlin.math.pow import kotlin.math.pow
import kotlin.math.sqrt import kotlin.math.sqrt
public typealias RealVector = Point<Double> public typealias RealVector = Point<Double>
public inline fun RealVector(size: Int, init: (Int) -> Double): RealVector = RealBuffer(size, init)
public fun RealVector(vararg doubles: Double): RealVector = RealBuffer(doubles)
public fun DoubleArray.asVector(): RealVector = asBuffer()
public fun List<Double>.asVector(): RealVector = asBuffer()
public object VectorL2Norm : Norm<Point<out Number>, Double> { public object VectorL2Norm : Norm<Point<out Number>, Double> {
override fun norm(arg: Point<out Number>): Double = sqrt(arg.asIterable().sumByDouble(Number::toDouble)) override fun norm(arg: Point<out Number>): Double = sqrt(arg.asIterable().sumByDouble(Number::toDouble))
} }
/** /**
* Fill the vector of given [size] with given [value] * Fill the vector of given [size] with given [value]
*/ */

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kmath-for-real/src/commonTest/kotlin/kaceince/kmath/real/RealVectorTest.kt
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@ -5,6 +5,7 @@ import kscience.kmath.linear.asMatrix
import kscience.kmath.linear.transpose import kscience.kmath.linear.transpose
import kscience.kmath.operations.invoke import kscience.kmath.operations.invoke
import kscience.kmath.real.RealVector import kscience.kmath.real.RealVector
import kscience.kmath.real.plus
import kotlin.test.Test import kotlin.test.Test
import kotlin.test.assertEquals import kotlin.test.assertEquals