Built-in functions : place_in function

place_in function

place_in(I)

When making an array with the makearray function, place_in() returns the current position in the array. If makearray() functions are nested one inside another, the argument to the place_in() function will determine which position is returned. An argument of 1 refers to the innermost makearray().

Input: integer

Result: integer

Examples:

makearray(if place_in(1)==1 then 10 else 5, 4) --> [10, 5, 5, 5]

makearray(if place_in(1)==2 then 10 else 5, 4) --> [5, 10, 5, 5]

makearray(makearray(if place_in(2)==1 then 10 else 5, 4), 2) --> [[10, 10, 10, 10], [5, 5, 5, 5]]

makearray(makearray(if place_in(1)==1 then 10 else 5, 4), 2) --> [[10, 5, 5, 5], [10, 5, 5, 5]]

makearray(4*place_in(1),12) --> [4 8 12 16 20 24 28 32 36 40 44 48]

makearray(makearray(place_in(1)*place_in(2),12),12) -->

[[1 2 3 4 5 6 7 8 9 10 11 12],

[2 4 6 8 10 12 14 16 18 20 22 24],

[3 6 9 12 15 18 21 24 27 30 33 36],

[4 8 12 16 20 24 28 32 36 40 44 48],

[5 10 15 20 25 30 35 40 45 50 55 60],

[6 12 18 24 30 36 42 48 54 60 66 72],

[7 14 21 28 35 42 49 56 63 70 77 84],

[8 16 24 32 40 48 56 64 72 80 88 96],

[9 18 27 36 45 54 63 72 81 90 99 108],

[10 20 30 40 50 60 70 80 90 100 110 120,

[11 22 33 44 55 66 77 88 99 110 121 132],

[12 24 36 48 60 72 84 96 108 120 132 144]]

Comments:

This function is only meaningful inside makearray() function. If used elsewhere, the equation parser will signal an error.

In: Contents >> Working with equations >> Functions >> Built-in functions