pyseobnr.eob.dynamics.integrate_ode_ecc.ColsEccDyn

class pyseobnr.eob.dynamics.integrate_ode_ecc.ColsEccDyn(value)[source]

Bases: IntEnum

Column indices for the dynamics of an eccentric system.

Note

The first columns up until pphi (included) point to the same dynamical variables as in the QC models SEOBNRv5HM and SEOBNRv5PHM.

Methods

`conjugate`	Returns self, the complex conjugate of any int.
`bit_length`()	Number of bits necessary to represent self in binary.
`to_bytes`(length, byteorder, *[, signed])	Return an array of bytes representing an integer.
`from_bytes`(byteorder, *[, signed])	Return the integer represented by the given array of bytes.
`as_integer_ratio`()	Return integer ratio.

Attributes

`real`	the real part of a complex number
`imag`	the imaginary part of a complex number
`numerator`	the numerator of a rational number in lowest terms
`denominator`	the denominator of a rational number in lowest terms
`t`	Time
`r`	Relative separation
`phi`	Azimuthal angle
`pr`	(Tortoise) radial momentum (conjugate to the tortoise radius)
`pphi`	Orbital angular momentum
`e`	Eccentricity
`z`	Relativistic anomaly
`x`	PN approximation for the dimensionless orbit-averaged orbital frequency
`H`	Hamiltonian
`omega`	Instantaneous orbital frequency

as_integer_ratio()

Return integer ratio.

Return a pair of integers, whose ratio is exactly equal to the original int and with a positive denominator.

>>> (10).as_integer_ratio()
(10, 1)
>>> (-10).as_integer_ratio()
(-10, 1)
>>> (0).as_integer_ratio()
(0, 1)

bit_length()

Number of bits necessary to represent self in binary.

>>> bin(37)
'0b100101'
>>> (37).bit_length()
6

from_bytes(byteorder, *, signed=False)

Return the integer represented by the given array of bytes.

bytes: Holds the array of bytes to convert. The argument must either support the buffer protocol or be an iterable object producing bytes. Bytes and bytearray are examples of built-in objects that support the buffer protocol.
byteorder: The byte order used to represent the integer. If byteorder is ‘big’, the most significant byte is at the beginning of the byte array. If byteorder is ‘little’, the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder’ as the byte order value.
signed: Indicates whether two’s complement is used to represent the integer.

to_bytes(length, byteorder, *, signed=False)

Return an array of bytes representing an integer.

length: Length of bytes object to use. An OverflowError is raised if the integer is not representable with the given number of bytes.
byteorder: The byte order used to represent the integer. If byteorder is ‘big’, the most significant byte is at the beginning of the byte array. If byteorder is ‘little’, the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder’ as the byte order value.
signed: Determines whether two’s complement is used to represent the integer. If signed is False and a negative integer is given, an OverflowError is raised.

x = 7: PN approximation for the dimensionless orbit-averaged orbital frequency