By using this method, automatic drawing is realized in designing different form turning tools which minimizes the hyperbolicerror, increases the design speed and improves drawing quality.
此方法大大减小了工件加工时的双曲线误差，实现了各种成形车刀的自动绘图，提高了设计速度和绘图质量。
2
A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.