顶点
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寻找抛物线的顶点、焦点和准线的C/C++程序
A set of points on a plain surface that forms a curve such that any point on that curve is equidistant from a point in the center (called focus) is a …
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A set of points on a plain surface that forms a curve such that any point on that curve is equidistant from a point in the center (called focus) is a …
