Java/Scala library for algebra, mathematics

java math scala linear-algebra algebra
Robert Zaremba picture Robert Zaremba · Mar 4, 2011 · Viewed 12.4k times · Source

Can you advise me some flexible and powerful, yet fast library which could cover SciPy (both in performance and functionality). I found SciPy very expressive - but I want to try something in Scala.

I read a little about Scala - but is not as featured as SciPy. Any alternatives? Maybe Java library?

Answer

Rex Kerr picture Rex Kerr · Mar 4, 2011

The functionality in Scipy is rather Matlab-like. So the question is whether you just want the core linear algebra / vector-matrix mathematics operations, or all sorts of things like clustering.

If you are not aware of both Scalala (now called Breeze) and ScalaLab, you should check them out--maybe they'll suit your needs.

If you need a more diverse library, there are a couple of Java libraries that might be suitable: CERN Colt and Apache Commons Math; these are intended to be used in Java style, however, and you're pretty much limited to using them that way from within Scala. (Though of course you can wrap the bits that you use particularly heavily in something prettier.)

Related questions

Scala and Java BigDecimal

I want to switch from Java to a scripting language for the Math based modules in my app. This is due to the readability, and functional limitations of mathy Java. For e.g, in Java I have this: BigDecimal x = …

Read More
Math.random() explanation

This is a pretty simple Java (though probably applicable to all programming) question: Math.random() returns a number between zero and one. If I want to return an integer between zero and hundred, I would do: (int) Math.floor(Math.…

Read More
How to evaluate a math expression given in string form?

I'm trying to write a Java routine to evaluate math expressions from String values like: "5+3" "10-40" "(1+10)*3" I want to avoid a lot of if-then-else statements. How can I do this?

Read More