Concatenates arrays along an existing axis (returns new array).

Joins arrays along the specified axis.

Parameters:

• axis - Axis along which to concatenate
• arrays - Arrays to concatenate (shapes must match except on concat axis)

Returns: New array with concatenated data

Example:

let a = newOnes(@[2, 3])
let b = newZeros(@[2, 3])
let concatenated = newConcat(0, @[a, b])  # Shape [4, 3]

Stacks arrays along a new axis (returns new array).

Creates a new dimension and stacks arrays along it.

Parameters:

• axis - Position of new axis in result
• arrays - Arrays to stack (must have same shape)

Returns: New array with stacked data

Example:

let a = newOnes(@[2, 3])
let b = newZeros(@[2, 3])
let stacked = newStack(0, @[a, b])  # Shape [2, 2, 3]