astroid造句
Construct an animation showing the tangent sweeping out the interior of
astroid.
建构一动态绘图:展示星状线的切线所有扫掠过的内部轨迹.
Construct rotating cardioid and
astroid while remaining orthogonal to each other.
作旋转的心脏线和旋转的星状线,且彼此维持正交.
Construct an animation of three concurrent tangents of the
astroid.
建构一动态绘图:展示星状线共点的三切线.