## "Fossies" - the Fresh Open Source Software Archive

### Member "pytorch-1.8.2/docs/source/type_info.rst" (23 Jul 2021, 2301 Bytes) of package /linux/misc/pytorch-1.8.2.tar.gz:

As a special service "Fossies" has tried to format the requested source page into HTML format (assuming markdown format).
Alternatively you can here

view or

download the uninterpreted source code file.
A member file download can also be achieved by clicking within a package contents listing on the according byte size field. See also the last

Fossies "Diffs" side-by-side code changes report for "type_info.rst":

1.11.0_vs_1.12.0.

# Type Info

The numerical properties of a `torch.dtype`

can be accessed through either the `torch.finfo`

or the `torch.iinfo`

.

## torch.finfo

A `torch.finfo`

is
an object that represents the numerical properties of a floating point
`torch.dtype`

, (i.e.
`torch.float32`

, `torch.float64`

, and
`torch.float16`

). This is similar to numpy.finfo.

A `torch.finfo`

provides the following attributes:

bits |
int |
The number of bits occupied by the type. |

eps |
float |
The smallest representable number such that
`1.0 + eps != 1.0` . |

max |
float |
The largest representable number. |

min |
float |
The smallest representable number (typically
`-max` ). |

tiny |
float |
The smallest positive representable number. |

resolution |
float |
The approximate decimal resolution of this type, i.e.,
`10**-precision` . |

The constructor of `torch.finfo`

can be called without argument, in which
case the class is created for the pytorch default dtype (as returned by
`torch.get_default_dtype`

).

## torch.iinfo

A `torch.iinfo`

is
an object that represents the numerical properties of a integer `torch.dtype`

(i.e.
`torch.uint8`

, `torch.int8`

,
`torch.int16`

, `torch.int32`

, and
`torch.int64`

). This is similar to numpy.iinfo.

A `torch.iinfo`

provides the following attributes:

bits |
int |
The number of bits occupied by the type. |

max |
int |
The largest representable number. |

min |
int |
The smallest representable number. |