def powerstring_by_border(u):
    L = maximum_border_length(u)
    n = len(u)
    if n % (n - L[-1]) == 0:
        return n // (n - L[-1])
    return 1
# snip}
Return True if this axes support the zoom box
dataset/ETHPy150Open jilljenn/tryalgo/tryalgo/knuth_morris_pratt_border.py/powerstring_by_border--crossover with--dataset/ETHPy150Open ejeschke/ginga/ginga/mplw/transform.py/GingaAxes.can_pan