78 lines
2.6 KiB
Markdown
78 lines
2.6 KiB
Markdown
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# Bits and Integers
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{:.no_toc}
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<nav markdown="1" class="toc-class">
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* TOC
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{:toc}
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</nav>
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## The goal
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Manipulation of integers and their bits
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Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
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## [numpy.ndarray.byteswap](https://numpy.org/doc/stable/reference/generated/numpy.ndarray.byteswap.html)
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```python
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ndarray.byteswap(inplace=False)
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```
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> Swap the bytes of the array elements
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>
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> Toggle between low-endian and big-endian data representation by returning a byteswapped array, optionally swapped in-place. Arrays of byte-strings are not swapped. The real and imaginary parts of a complex number are swapped individually.
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>
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> **inplace** : bool, optional
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>
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> If True, swap bytes in-place, default is False.
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## [numpy.bitwise_and](https://numpy.org/doc/stable/reference/generated/numpy.bitwise_and.html)
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```python
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numpy.bitwise_and(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])
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```
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> Compute the bit-wise AND of two arrays element-wise.
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>
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> Computes the bit-wise AND of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator &.
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## [numpy.bitwise_or](https://numpy.org/doc/stable/reference/generated/numpy.bitwise_or.html)
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```python
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numpy.bitwise_or(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])
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```
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> Compute the bit-wise OR of two arrays element-wise.
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>
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> Computes the bit-wise OR of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator \|.
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## [numpy.bitwise_xor](https://numpy.org/doc/stable/reference/generated/numpy.bitwise_xor.html)
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```python
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numpy.bitwise_xor(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])
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```
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> Compute the bit-wise XOR of two arrays element-wise.
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>
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> Computes the bit-wise XOR of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ^.
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## [bitwise_not](https://numpy.org/doc/stable/reference/generated/numpy.invert.html)
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> **bitwise_not is an alias for invert**
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```python
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numpy.invert(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])
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```
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> Compute bit-wise inversion, or bit-wise NOT, element-wise.
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>
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> Computes the bit-wise NOT of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ~.
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>
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> For signed integer inputs, the two’s complement is returned.
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