@staticmethod
def param_parse(v, pimode=False):
    for (i, e) in enumerate(v):
        if pimode:
            v[i] = MatplotlibDrawer.format_pi(e)
        else:
            v[i] = MatplotlibDrawer.format_numeric(e)
        if v[i].startswith('-'):
            v[i] = ('$-$' + v[i][1:])
    param = ', '.join(v)
    return param
@staticmethod
def param_parse(v, pimode=False):
    for (i, e) in enumerate(v):
        if pimode:
            v[i] = MatplotlibDrawer.format_pi(e)
        else:
            v[i] = MatplotlibDrawer.format_numeric(e)
        if v[i].startswith('-'):
            v[i] = ('$-$' + v[i][1:])
    param = ', '.join(v)
    return param