slice demo

slice.nim

import math, arraymancer

const
    x = @[1, 2, 3, 4, 5]
    y = @[1, 2, 3, 4, 5]

var
    vandermonde: seq[seq[int]]
    row: seq[int]

vandermonde = newSeq[seq[int]]()

for i, xx in x:
    row = newSeq[int]()
    vandermonde.add(row)
    for j, yy in y:
        vandermonde[i].add(xx^yy)

let foo = vandermonde.toTensor()

echo foo

# Tensor of shape 5x5 of type "int" on backend "Cpu"
# |1      1       1       1       1|
# |2      4       8       16      32|
# |3      9       27      81      243|
# |4      16      64      256     1024|
# |5      25      125     625     3125|

let t = 2

echo foo[1..^2, t]