ch-ch-update: series, closed-form series, and strides

[Ary Borenszweig]

Andrei Alexandrescu escribió:
> I've updated my code and documentation to include series (as in math) in 
> the form of infinite ranges. Also series in closed form (given n can 
> compute the nth value without iterating) are supported as random-access 
> ranges.
> 
> Also Stride is provided. The Matrix container (speaking of scientific 
> computing with D!) will support various representational choices, most 
> importantly the ones endorsed by high-performance libraries. For Matrix, 
> Stride is an important component as I'm sure anyone who's ever written a 
> matrix knows.
> 
> http://ssli.ee.washington.edu/~aalexand/d/web/phobos/std_range.html
> http://ssli.ee.washington.edu/~aalexand/d/web/phobos/std_algorithm.html
> 
> Back to series. Finally my dream has come true: I can define a decent 
> Fibonacci series clearly and efficiently in one line of code. No more 
> idiotic recursive function that takes exponential time to finish!
> 
> auto fib = series!("a[n-1] + a[n]")(1, 1);
> // write 10 Fibonacci numbers
> foreach (e; take(10, fib)) writeln(e);

That is *SO* awesome!!