Numerical library for Scala

There is Scalala for Scala, but I am not sure it covers your need.

There are also the ones listed in this SO question: Java Scientific Packages similar to SciPy?.

SuanShu is a Java math library of numerical methods for numerical analysis.

Late to this...

Try ND4S -- it supports n-dimensional arrays for Scala and other JVM-based languages.

• https://en.wikipedia.org/wiki/ND4S
• https://github.com/deeplearning4j/nd4s

It's linked to an open-source framework called Deeplearning4j, which implements algorithms such as LBFGS.

• http://deeplearning4j.org