def rot_axis3(theta):
    ct = cos(theta)
    st = sin(theta)
    lil = ((ct, st, 0),
           (-st, ct, 0),
           (0, 0, 1))
    return Matrix(lil)
Checks if the Alt key was down when the mouse event took place.
dataset/ETHPy150Open sympy/sympy/sympy/matrices/dense.py/rot_axis3--crossover with--dataset/ETHPy150Open rwl/muntjac/muntjac/event/mouse_events.py/ClickEvent.isAltKey