The OneDimensionalArray domain is used for storing data in a one-dimensional indexed data structure. Such an array is a homogeneous data structure in that all the entries of the array must belong to the same FriCAS domain. Each array has a fixed length specified by the user and arrays are not extensible. The indexing of one-dimensional arrays is one-based. This means that the “first” element of an array is given the index 1.
To create a one-dimensional array, apply the operation oneDimensionalArray to a list.
oneDimensionalArray [i**2 for i in 1..10]
[1,4,9,16,25,36,49,64,81,100]
Type: OneDimensionalArray PositiveInteger
Another approach is to first create a, a one-dimensional array of 10 0’s. OneDimensionalArray has the convenient abbreviation ARRAY1.
a : ARRAY1 INT := new(10,0)
[0,0,0,0,0,0,0,0,0,0]
Type: OneDimensionalArray Integer
Set each i-th element to i, then display the result.
for i in 1..10 repeat a.i := i; a
[1,2,3,4,5,6,7,8,9,10]
Type: OneDimensionalArray Integer
Square each element by mapping the function i +-> i^2 onto each element.
map!(i +-> i ** 2,a); a
[1,4,9,16,25,36,49,64,81,100]
Type: OneDimensionalArray Integer
Reverse the elements in place.
reverse! a
[100,81,64,49,36,25,16,9,4,1]
Type: OneDimensionalArray Integer
Swap the 4th and 5th element.
swap!(a,4,5); a
[100,81,64,36,49,25,16,9,4,1]
Type: OneDimensionalArray Integer
Sort the elements in place.
sort! a
[1,4,9,16,25,36,49,64,81,100]
Type: OneDimensionalArray Integer
Create a new one-dimensional array b containing the last 5 elements of a.
b := a(6..10)
[36,49,64,81,100]
Type: OneDimensionalArray Integer
Replace the first 5 elements of a with those of b.
copyInto!(a,b,1)
[36,49,64,81,100,36,49,64,81,100]
Type: OneDimensionalArray Integer
See Also: