float :: Class float

Class float

object --+
         |
        float

float(x) -> floating point number

Convert a string or number to a floating point number, if possible.

Instance Methods

[hide private]

__abs__(x)
abs(x)

__add__(x, y)
x+y

__coerce__(x, y)
coerce(x, y)

__div__(x, y)
x/y

__divmod__(x, y)
divmod(x, y)

__eq__(x, y)
x==y

__float__(x)
float(x)

__floordiv__(x, y)
x//y

string

__format__(float, format_spec)
Formats the float according to format_spec.

__ge__(x, y)
x>=y

__getattribute__(...)
x.__getattribute__('name') <==> x.name

string

__getformat__(float, typestr)
You probably don't want to use this function.

__getnewargs__(...)

__gt__(x, y)
x>y

__hash__(x)
hash(x)

__int__(x)
int(x)

__le__(x, y)
x<=y

__long__(x)
long(x)

__lt__(x, y)
x<y

__mod__(x, y)
x%y

__mul__(x, y)
x*y

__ne__(x, y)
x!=y

__neg__(x)
-x

a new object with type S, a subtype of T

__new__(T, S, ...)

__nonzero__(x)
x != 0

__pos__(x)
+x

__pow__(x, y, z=...)
pow(x, y[, z])

__radd__(x, y)
y+x

__rdiv__(x, y)
y/x

__rdivmod__(x, y)
divmod(y, x)

__repr__(x)
repr(x)

__rfloordiv__(x, y)
y//x

__rmod__(x, y)
y%x

__rmul__(x, y)
y*x

__rpow__(y, x, z=...)
pow(x, y[, z])

__rsub__(x, y)
y-x

__rtruediv__(x, y)
y/x

None

__setformat__(float, typestr, fmt)
You probably don't want to use this function.

__str__(x)
str(x)

__sub__(x, y)
x-y

__truediv__(x, y)
x/y

__trunc__(...)
Return the Integral closest to x between 0 and x.

(int, int)

as_integer_ratio(float)
Return a pair of integers, whose ratio is exactly equal to the original float and with a positive denominator.

conjugate(...)
Return self, the complex conjugate of any float.

float

fromhex(float, string)
Create a floating-point number from a hexadecimal string.

string

hex(float)
Return a hexadecimal representation of a floating-point number.

is_integer(...)
Return True if the float is an integer.

Inherited from object: __delattr__, __init__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Properties

[hide private]

imag
the imaginary part of a complex number

real
the real part of a complex number

Inherited from object: __class__

Method Details

[hide private]

format(float, format_spec)

Formats the float according to format_spec.

Returns: string
Overrides: object.__format__

getattribute(...)

x.__getattribute__('name') <==> x.name

Overrides: object.__getattribute__

getformat(float, typestr)

You probably don't want to use this function. It exists mainly to be used in Python's test suite.

typestr must be 'double' or 'float'. This function returns whichever of 'unknown', 'IEEE, big-endian' or 'IEEE, little-endian' best describes the format of floating point numbers used by the C type named by typestr.

Returns: string

hash(x)
(Hashing function)

hash(x)

Overrides: object.__hash__

new(T, S, ...)

Returns: a new object with type S, a subtype of T
Overrides: object.__new__

repr(x)
(Representation operator)

repr(x)

Overrides: object.__repr__

setformat(float, typestr, fmt)

You probably don't want to use this function. It exists mainly to be used in Python's test suite.

typestr must be 'double' or 'float'. fmt must be one of 'unknown', 'IEEE, big-endian' or 'IEEE, little-endian', and in addition can only be one of the latter two if it appears to match the underlying C reality.

Override the automatic determination of C-level floating point type. This affects how floats are converted to and from binary strings.

Returns: None

str(x)
(Informal representation operator)

str(x)

Overrides: object.__str__

as_integer_ratio(float)

Return a pair of integers, whose ratio is exactly equal to the original float and with a positive denominator. Raise OverflowError on infinities and a ValueError on NaNs.

>>> (10.0).as_integer_ratio()
(10, 1)
>>> (0.0).as_integer_ratio()
(0, 1)
>>> (-.25).as_integer_ratio()
(-1, 4)

Returns: (int, int)

fromhex(float, string)

Create a floating-point number from a hexadecimal string. >>> float.fromhex('0x1.ffffp10') 2047.984375 >>> float.fromhex('-0x1p-1074') -4.9406564584124654e-324

Returns: float

hex(float)

Return a hexadecimal representation of a floating-point number. >>> (-0.1).hex() '-0x1.999999999999ap-4' >>> 3.14159.hex() '0x1.921f9f01b866ep+1'

Returns: string

Class float

__format__(float, format_spec)

__getattribute__(...)

__getformat__(float, typestr)

__hash__(x) (Hashing function)

__new__(T, S, ...)

__repr__(x) (Representation operator)

__setformat__(float, typestr, fmt)

__str__(x) (Informal representation operator)

as_integer_ratio(float)

fromhex(float, string)

hex(float)

format(float, format_spec)

getattribute(...)

getformat(float, typestr)

hash(x)
(Hashing function)

new(T, S, ...)

repr(x)
(Representation operator)

setformat(float, typestr, fmt)

str(x)
(Informal representation operator)