|
|year = 2011
|designer = Wai-Mee Ching
|developer = Rapidsoft<ref name="fastarray">[http://fastarray.appspot.com/default.html ELI - official site]</ref> (Hanfeng Chen<ref name="mirror">[http://cs.queensu.ca/~chenh/eli/ ELI - mirror site at Queen's University]</ref>)
"ELI is freely available on Windows, Linux and Mac OS; see Download for versions and update information. An introductory paper, a tutorial on Programming with Arrarys , a Primer and a Compiler User’s Guide are available in Documents. We give a sample here to illustrate the flavor of the language."
"© 2015 by chf"</ref> (Hanfeng Chen<ref name="mirror">[http://cs.queensu.ca/~chenh/eli/ ELI - mirror site at Queen's University]</ref>)
|latest release version = 0.2
|latest release date = November 30, 2013
ELI is free and available on Windows, Linux and Mac OS.
==Sample==
The following is a sample to illustrate the flavor of the language which incidentally shows that ELI is easy to learn and free of unnecessary syntactic clutters.{{cn}}
A line of ELI executes from right to left as a chain of operations; anything to the right of ‘//’ is a comment.
<pre>
!10 //get the vector 1..10
1 2 3 4 5 6 7 8 9 10
100*!10 //multiply that vector by 100
100 200 300 400 500 600 700 800 900 1000
3 4#!10 //reshape the vector 1..10 into a 3x4 matrix
1 2 3 4
5 6 7 8
9 10 1 2
&.3 4#!10 //flip the above matrix
1 5 9
2 6 10
3 7 1
4 8 2
+/3 4#!10 //sum each row of the 3x4 matrix
10 26 22
2*0,!10 //append 0 in front of 1..10, and double it
0 2 4 6 8 10 12 14 16 18 20
2*.0,!10 //2 to the power of 0..10
1 2 4 8 16 32 64 128 256 512 1024
%1 2 3 5 10 //1 divided by 1 2 3 5 10
1 0.5 0.3333333333 0.2 0.1
1024*.%1 2 3 5 10 //1024 takes 1 root, square root, cube root, …
1024 32 10.0793684 4 2
1-2 //1 minus 2
_1
_1*.0.5 //square root of minus 1
0j1
@1
3.141592654 //pi
*.0j1*@1 //eiΠ = -1
_1
2012.12.25+!7 //7 days following Christmas of 2012
2012.12.26 2012.12.27 2012.12.28 2012.12.29 2012.12.30 2012.12.31 2013.01.01
w<-10?.100 //get 10 random numbers from 1..100
w
14 76 46 54 22 5 68 94 39 52
w<50 //compare w with 50
1 0 1 0 1 1 0 0 1 0
(w<50)/w //select elements in w which are less than 50
14 46 22 5 39
+\(w<50)/w //partial sums of the vector above
14 60 82 87 126
$_3+!12 //reverse of _3 adds to 1..12
9 8 7 6 5 4 3 2 1 0 _1 _2
32+1.8*c<-$_2+!12 //Fahrenheit correspond to Celsius above
48.2 46.4 44.6 42.8 41 39.2 37.4 35.6 33.8 32 30.2 28.4
c,[1.5]32+1.8*c<-$_3+!12 //a table of temperature conversion
9 48.2
8 46.4
7 44.6
6 42.8
5 41
4 39.2
3 37.4
2 35.6
1 33.8
0 32
_1 30.2
_2 28.4
(2 3#!6;`ny `ma `md;'ABCDE') //a list of numbers, symbols, chars
<1 2 3
4 5 6
<`ny `ma `md
<ABCDE
#"(2 3#!6;`ny `ma `md;'ABCDE') //shape of each element in the list
<2 3
<3
<5
</pre>
==References==
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