def make_taw_list(taw_tup):
    """
    makes a list of all the taws used
    :param taw_tup: (begin_taw, end_taw, taw_step)
    :return:
    """
    # upack
    begin_taw, end_taw, taw_step = taw_tup
    taw_list = []
    for i in range(0, ((end_taw - begin_taw) / taw_step)):
        taw = begin_taw + (i * taw_step)
        taw_list.append(taw)

    return taw_list