jax.numpy.finfo¶

class jax.numpy.finfo(dtype)[source]¶

Machine limits for floating point types.

bits¶

The number of bits occupied by the type.

Type: int

eps¶

The difference between 1.0 and the next smallest representable float larger than 1.0. For example, for 64-bit binary floats in the IEEE-754 standard, eps = 2**-52, approximately 2.22e-16.

Type: float

epsneg¶

The difference between 1.0 and the next smallest representable float less than 1.0. For example, for 64-bit binary floats in the IEEE-754 standard, epsneg = 2**-53, approximately 1.11e-16.

Type: float

iexp¶

The number of bits in the exponent portion of the floating point representation.

Type: int

machar¶

The object which calculated these parameters and holds more detailed information.

Type: MachAr

machep¶

The exponent that yields eps.

Type: int

max¶

The largest representable number.

Type: floating point number of the appropriate type

maxexp¶

The smallest positive power of the base (2) that causes overflow.

Type: int

min¶

The smallest representable number, typically -max.

Type: floating point number of the appropriate type

minexp¶

The most negative power of the base (2) consistent with there being no leading 0’s in the mantissa.

Type: int

negep¶

The exponent that yields epsneg.

Type: int

nexp¶

The number of bits in the exponent including its sign and bias.

Type: int

nmant¶

The number of bits in the mantissa.

Type: int

precision¶

The approximate number of decimal digits to which this kind of float is precise.

Type: int

resolution¶

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

Type: floating point number of the appropriate type

tiny¶

The smallest positive usable number. Type of tiny is an appropriate floating point type.

Type: float

Parameters: dtype (float, dtype, or instance) – Kind of floating point data-type about which to get information.