Commit 7cf278a4 authored by David Hendriks's avatar David Hendriks
Browse files

minor changes

parent db108bc5

binarycpython/utils/useful_funcs.py

+6 −2
Original line number Diff line number Diff line
@@ -22,7 +22,9 @@ YEARDY = 3.651995478818308811241877265275e02 
def calc_period_from_sep(M1, M2, sep):

    """

    calculate period from separation

    args : M1, M2, separation (Rsun)

    args : M1 (Msol), M2 (Msol), separation (Rsun)



    returns the period (days)

    """



    return YEARDY * (sep / AURSUN) * math.sqrt(sep / (AURSUN * (M1 + M2)))
@@ -31,7 +33,9 @@ def calc_period_from_sep(M1, M2, sep): 
def calc_sep_from_period(M1, M2, period):

    """

    inverse of the above function

    args : M1, M2, period (days)

    args : M1 (Msol), M2 (Msol), period (days)



    returns the separation (Rsun)

    """



    return AURSUN * (period * period * (M1 + M2) / (YEARDY * YEARDY)) ** (1.0 / 3.0)