ScalaLab and GroovyLab: Comparing Scala and Groovy for Scientific Computing

Algorithm 4

// define the operation: Number + double ,

// at the MetaClass of the Number’s class

Number.metaClass.plus  =

  {

// the double  m array denotes the input parameter

 double  m  ->

// call a Java routine for the operation

    res  =

groovySci.math.LinearAlgebra.LinearAlgebra.plus(delegate,  m) // calls Java code

    res

}