tri.util.math.ApacheMath.kt Maven / Gradle / Ivy
/*-
* #%L
* coda-data
* --
* Copyright (C) 2020 - 2022 Elisha Peterson
* --
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package tri.util.math
import org.apache.commons.math3.linear.ArrayRealVector
import org.apache.commons.math3.linear.RealMatrix
import org.apache.commons.math3.linear.RealVector
typealias Jacobian = org.apache.commons.math3.util.Pair
operator fun RealVector.get(i: Int) = getEntry(i)
operator fun RealVector.plus(v2: RealVector) = this.add(v2)
operator fun RealVector.minus(v2: RealVector) = this.subtract(v2)
operator fun RealVector.div(x: Double) = this.mapDivide(x)
operator fun Double.times(v: RealVector) = v.mapMultiply(this)
fun vec(vararg x: Number) = listOf(*x).map { it.toDouble() }.toDoubleArray().let { ArrayRealVector(it) }