GDL - GNU Data Language, a free IDL (Interactive Data Language, see http://ittvis.com/idl/) compatible incremental compiler.
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GDL is perfect in the usual use. We check the GDL, and want to exceed the original IDL.
Gnudatalanguage is great! Thanks.
Great job! Basic IDL programs work without a need for modification. Great response from the developers.
It is impressive how well GDL can run un-modified IDL programs. GDL can succeed to do with IDL what Yorick, Octave and Scilab failed to do for Matlab. Namely GDL can become a real free alternative to IDL. Many tahnks to those who contributed and to the project creator in the first place. The authors of GDL have understood the importance of full IDL language compatibility, to produce a critical mass of users, as opposed to Yorick, Octave and Scilab, who just created a variety of different incompatible dialect, with a too small user base to be really useful. GDL has the potential to become the standard language in astrophysics. What it needs to succeed is (i) keep finalizing small incompatibilities and (ii) improve execution speed: GDL still seems ~5-10 times slower than IDL on major, well-vectorized programs and (iii) publicity!
very useful! covers many IDL features