At 10:33 AM 3/13/2007, Peter St. John wrote:
Brown Dai-Sensei-Sama,
Regarding "...Nobody knows why CPS departments no longer teach
students to code in C (and instead teach a bizarre mix of C++, java,
lisp, and god-knows-what else first -- at one time they just LOVED
pascal and where is THAT now I aske you), ..."
Pascal, C, C++, Java, and LISP are not 5 languages, really; let's
say, they are spanned by a lower dimensional basis set. They are
really two languages (C and LISP) with two (or more) conceptual
paradigms (Procedural vs Object Oriented, say). It would be
insulting to say that PASCAL is merely C with BEGIN, END instead of
{ and }, but...
Pascal (at least originally) didn't allow you to do "dangerous"
things like casting or direct pointer manipulation. It was very
popular in the mid 70s at UCSD where we had little PDP-11
workstations that compiled into P-code and then ran on the P-code
interpreter.
So I think that CS departments just agree with me, that you
understand programming better if you learn two.
Re: FORTRAN, for awhile there we didn't really compile it, but
translate it to C and then invoke the C compiler. That gets you the
beauty of the IMSL libraries and the efficiency of very sharply
maintained C compilers, at the same time. Is there a good extant
FORTRAN compiler? I wonder why, fortran is easy to express in C
(unlike conceptually variant languages, like APL or LISP).
Except that all the highly optimized libraries for crunching vectors
and matrices are tuned for FORTRAN, which is easier to use for such
things than C, which insists on thinking of matrices as vectors of
pointers, or forces you to explicitly be aware of how the indexing works.
Having done matrix math (with complex numbers) in both, I'd much
prefer FORTRAN over C.
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