circular arc

基本解释

Sometimes programmers erroneously force users to trace a circular arc with their mouse, which can be quite challenging .
有時，程序員錯誤地強迫使用者用鼠標來描圓弧，這是相儅有難度的。
Tangential continuity [C1 or G1] is the next level, defined by a circular arc creating a relatively smooth transition between these surfaces.
相切（Tangential）連續性[C1 or G1]則是下一個層次，指的是建立一個連接這些表麪間的平滑的圓弧過渡。
This draws a circular arc at (150, 150) on the page (relative to the bottom-left corner), of radius 10, from angle 0 to angle 360, or a full circle.
這段代碼將在頁麪的 (150, 150) 位置（相對於左下角）繪制一個半逕爲 10 的圓圈，從 0 度到 360 度（即完整的圓圈）。

圓弧
Furthermore,some circular arc spline curves which have C0 or GC1 continuity are constructed.
本文進一步搆造了具有一定光滑性質的圓弧樣條曲線。
數學
圓弧