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trait Complex extends Product2[Double, Double] {
def canEqual(other: Any) = other.isInstanceOf[Complex]
}
class ComplexRect(val _1: Double, val _2: Double) extends Complex {
override def toString = "ComplexRect("+_1+","+_2+")"
}
class ComplexPolar(val _1: Double, val _2: Double) extends Complex {
override def toString = "ComplexPolar("+_1+","+_2+")"
}
object ComplexRect {
def unapply(z:Complex): Option[Complex] = {
if(z.isInstanceOf[ComplexRect]) Some(z) else z match {
case ComplexPolar(mod, arg) =>
Some(new ComplexRect(mod*Math.cos(arg), mod*Math.sin(arg)))
} } }
object ComplexPolar {
def unapply(z:Complex): Option[Complex] = {
if(z.isInstanceOf[ComplexPolar]) Some(z) else z match {
case ComplexRect(re,im) =>
Some(new ComplexPolar(Math.sqrt(re*re + im*im), Math.atan(re/im)))
} } }
object Test {
def main(args:Array[String]) = {
new ComplexRect(1,1) match {
case ComplexPolar(mod,arg) => // z @ ???
Console.println("mod"+mod+"arg"+arg)
}
val Komplex = ComplexRect
new ComplexPolar(Math.sqrt(2),Math.Pi / 4.0) match {
case Komplex(re,im) => // z @ ???
Console.println("re"+re+" im"+im)
}
}
}
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