Comment by aschampion

It's mainly targeting MATLAB, and to a slightly lesser extent scientific and numeric programming in Python and R. It's a well thought out language that allows you to write MATLAB-like high level code with an easy gradient for progressive typing and optimization to near C level performance. It's a bit harder to sell versus Python, since Python has enormous value in the ecosystem, community, and ubiquity. Also, because it primary targets MATLAB a lot of the standard libraries try to have similar ergonomics, which is a bit of a waste of a great tool to recreate a poor interface.