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• SphericalVector.scala

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axle.algebra.SphericalVector.scala Maven / Gradle / Ivy

package axle.algebra

import axle.quanta.Angle
import axle.quanta.Distance
import axle.quanta.UnittedQuantity
import spire.algebra.Field
import spire.algebra.Order

/**
 *
 * Uses the physics conventions instead of mathematical conventions.
 *
 * http://en.wikipedia.org/wiki/Spherical_coordinate_system
 *
 */
case class SphericalVector[N: Field: Order](
  ρ: UnittedQuantity[Distance, N], // radius
  θ: UnittedQuantity[Angle, N], // 90 - latitude N, aka "co-latitude"
  φ: UnittedQuantity[Angle, N] // longitude E
  )