What is The Difference Between OPAL And Frink, Programming Languages

Both OPAL and Frink are Interpreted Programming Languages
What are Interpreted Programming Languages
An interpreted language is a programming language for which most of its implementations execute instructions directly, without previously compiling a program into machine-language instructions. The interpreter executes the program directly, translating each statement into a sequence of one or more subroutines already compiled into machine code. (Wikipedia)
Since OPAL and, are both Interpreted Programming Languages
Let us now look at the difference between the two:
What is OPAL Programming Language – A brief synopsis
The name stands for Optimized Applicative Language and is a functional programming language developed at the Technical University of Berlin.
What is Frink Programming Language – A brief synopsis
Developed by Alan Eliasen and named after Professor John Frink, a popular fictional character. It is based on the Java Virtual Machine and focuses on science and engineering. Its striking feature is that it tracks the units of measure through all the calculations that enables quantities to contain their units of measurement.
Sources
A Complete List of Computer Programming Languages