Scripting environments are very popular in scientific computing especially for educational and prototyp- ing applications. MATLAB dominates as a commer- cial scientific scripting package. Recently, we intro- duced the Scala based ScalaLab [16] environment for the Java Virtual Machine. ScalaLab exploits the pow- erful Scala object-functional language [12]. It presents a MATLAB-like style of working, and compiles the scripts for the JVM. ScalaLab runs the scripts at the full Java’s speed which as we illustrate can be signifi- cantly better than unoptimized C code.