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java.math.max | 687 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
java.math.max
Authored by: Ed L. on Saturday, April 28 2012 @ 12:50 AM EDT
Well, you nailed three, not a bad start for a not-a-fortran hack.

C++11 introduces the unique_ptr, rvalue reference, and move semantics to address the aliasing issue. Sort of. Complex numbers are handled pretty well, but I still sometimes feel queasy using them compared to the bad old days of DEC fortran.

Another bugaboo is multidimensional arrays and array slices, which Fortran defines and handles really well. And has like, forever. There have been various C++ template libraries that implement such with varying degrees of efficiency, none as well as Fortran at least for primitive numeric types. I use Template Numeric Toolkit. Others use Boost::array classes. None of them standard. C++11 introduces the standard valarray template class which should bring a modicum of order to the chaos.

Eventually.

Meanwhile, Fortran lurches onward.

---
Real Programmers mangle their own memory.

[ Reply to This | Parent | # ]

java.math.max
Authored by: Wol on Sunday, April 29 2012 @ 01:33 PM EDT
FORTRAN stands for FORmula TRANslation. Assuming the language still sticks to
its mathematical roots, that means it's the best language for writing heavily
computational programs in.

Most super-computers, designed for heavy number-crunching, are probably STILL
programmed in FORTRAN where speed is important.

I don't know how true it is today, but it's not that long ago that the UK met
office was still programming in FORTRAN, because it was the only way they could
get their Crays etc to produce results in time for the forecasts, rather than
track the weather in less than real time.

Cheers,
Wol

[ Reply to This | Parent | # ]

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