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# Array manipulation routines

## Basic operations

`copyto`(dst, src[, casting, where]) | Copies values from one array to another, broadcasting as necessary.
`ndim`(a) | Return the number of dimensions of an array.
`shape`(a) | Return the shape of an array.
`size`(a[, axis]) | Return the number of elements along a given axis.

## Changing array shape

`reshape`(a, /, shape[, order, copy]) | Returns a reshaped ndarray without changing data.
`ravel`(a[, order]) | Return a contiguous flattened array.
`ndarray.flat` | A 1-D iterator over the array.
`ndarray.flatten`([order]) | Return a copy of the array collapsed into one dimension.

## Transpose-like operations

`moveaxis`(a, source, destination) | Move axes of an array to new positions.
`rollaxis`(a, axis[, start]) | Roll the specified axis backwards, until it lies in a given position.
`swapaxes`(a, axis1, axis2) | Interchange two axes of an array.
`ndarray.T` | View of the transposed array.
`transpose`(a[, axes]) | Returns an array with axes transposed.
`permute_dims`(a[, axes]) | Returns an array with axes transposed.
`matrix_transpose`(x, /) | Transposes a matrix (or a stack of matrices) `x`.

## Changing number of dimensions

`atleast_1d`(*arys) | Convert inputs to arrays with at least one dimension.
`atleast_2d`(*arys) | View inputs as arrays with at least two dimensions.
`atleast_3d`(*arys) | View inputs as arrays with at least three dimensions.
`broadcast`(*arrays) | Produce an object that mimics broadcasting.
`broadcast_to`(array, shape[, subok]) | Broadcast an array to a new shape.
`broadcast_arrays`(*args[, subok]) | Broadcast any number of arrays against each other.
`expand_dims`(a, axis) | Expand the shape of an array.
`squeeze`(a[, axis]) | Remove axes of length one from a.

## Changing kind of array

`asarray`(a[, dtype, order, device, copy, like]) | Convert the input to an array.
`asanyarray`(a[, dtype, order, device, copy, like]) | Convert the input to an ndarray, but pass ndarray subclasses through.
`asmatrix`(data[, dtype]) | Interpret the input as a matrix.
`asfortranarray`(a[, dtype, like]) | Return an array (ndim >= 1) laid out in Fortran order in memory.
`ascontiguousarray`(a[, dtype, like]) | Return a contiguous array (ndim >= 1) in memory (C order).
`asarray_chkfinite`(a[, dtype, order]) | Convert the input to an array, checking for NaNs or Infs.
`require`(a[, dtype, requirements, like]) | Return an ndarray of the provided type that satisfies requirements.

## Joining arrays

`concatenate`(arrays, /[, axis, out, dtype, ...]) | Join a sequence of arrays along an existing axis.
`concat`(arrays, /[, axis, out, dtype, casting]) | Join a sequence of arrays along an existing axis.
`stack`(arrays[, axis, out, dtype, casting]) | Join a sequence of arrays along a new axis.
`block`(arrays) | Assemble an nd-array from nested lists of blocks.
`vstack`(tup, *[, dtype, casting]) | Stack arrays in sequence vertically (row wise).
`hstack`(tup, *[, dtype, casting]) | Stack arrays in sequence horizontally (column wise).
`dstack`(tup) | Stack arrays in sequence depth wise (along third axis).
`column_stack`(tup) | Stack 1-D arrays as columns into a 2-D array.

## Splitting arrays

`split`(ary, indices_or_sections[, axis]) | Split an array into multiple sub-arrays as views into ary.
`array_split`(ary, indices_or_sections[, axis]) | Split an array into multiple sub-arrays.
`dsplit`(ary, indices_or_sections) | Split array into multiple sub-arrays along the 3rd axis (depth).
`hsplit`(ary, indices_or_sections) | Split an array into multiple sub-arrays horizontally (column-wise).
`vsplit`(ary, indices_or_sections) | Split an array into multiple sub-arrays vertically (row-wise).
`unstack`(x, /, *[, axis]) | Split an array into a sequence of arrays along the given axis.

## Tiling arrays

`tile`(A, reps) | Construct an array by repeating A the number of times given by reps.
`repeat`(a, repeats[, axis]) | Repeat each element of an array after themselves

## Adding and removing elements

`delete`(arr, obj[, axis]) | Return a new array with sub-arrays along an axis deleted.
`insert`(arr, obj, values[, axis]) | Insert values along the given axis before the given indices.
`append`(arr, values[, axis]) | Append values to the end of an array.
`resize`(a, new_shape) | Return a new array with the specified shape.
`trim_zeros`(filt[, trim, axis]) | Remove values along a dimension which are zero along all other.
`unique`(ar[, return_index, return_inverse, ...]) | Find the unique elements of an array.
`pad`(array, pad_width[, mode]) | Pad an array.

## Rearranging elements

`flip`(m[, axis]) | Reverse the order of elements in an array along the given axis.
`fliplr`(m) | Reverse the order of elements along axis 1 (left/right).
`flipud`(m) | Reverse the order of elements along axis 0 (up/down).
`roll`(a, shift[, axis]) | Roll array elements along a given axis.
`rot90`(m[, k, axes]) | Rotate an array by 90 degrees in the plane specified by axes.