Hash

Hash # Operator

# Operator can have multiple meanings, when used as a binary operator or as suffix.  Hash # Operator . 

# can be used to (1) arrafy functions, (2) index, search and filter arrays, and (3) index and search Objects.

# to arrayfy Functions

Any functions can be enabled with Array handling for all (or some) parameters, by using # operator. For example: v:=u+a*t; creates a function v which computes the expression u+a*t, with u, a, and t as parameters. However, this function only takes simple parameters as inputs. To make the function v to be able to compute combinations of arrays as parameters, using Combinatorial Arguments, simply use the notation v# to enable array handling capabilities to each of the parameters. If we wish to exclude any parameter, provide an array of such parameters index as the suffix to #. For example, v#[1] will exclude "a" (the 1st index parameter) from handling input arrays.

Once arrayfied, the function can take arrays as arguments, and for each of the cartesian product of the parameters, a result will be computed. For example, once arrayfied, v(1..2,3..4,1..10) will compute the value for v for each combination of the three parameter arrays.

# to an index arrays, etc

(1..10)#0..2 (1..10)#2 (1..10)#22

(1..10)#1d // dimension 1st, made to 1-1=0 of size |4|#2d |4|#1d |4|#[2,3] MS(4)#[2,3,6] MS(4)#[2,1] MS(4)#2,1 MS(4)#[2d] // size of 2d MS(4)#[2d,1d]

"this"#[3,3] [..4,..5]#[1,0] [..4,..5]#1,3

2..10|.%|1..5

(1..10)@"SIN"!

(1..100n)! (1..12)#2 (1..12)#2..6 (1..12)#/4/ (1..12)#/4/#TRUE

a={speed:3,weight:34}; a#"speed" a={speed:3,weight:34}; a#["speed","weight"] a#; // will arrayfy the object. // header based with a notation?

a={speed:3,weight:34}; a#"speed","weight"

a= {speed:3, weight:34, details:{color:"red",size:"large"} }; a#[["speed","weight"],"details","size"] ; a#[[["details","size"]]] ;