文中给出了流函数方程及边界条件的坐标转换形式和离散格式，采用了强隐式(SIP)迭代法，分别对具有弓形和半弓形突体的直管进行了计算。
In this paper, the transformed forms of the flow function equation and boundary conditions and their difference expressions are given, and Strongly Implicit Procedure (SIP) iteration is used.
论证了两曲面的交线为空间曲线，其方程为一元四次隐函数关系式；
It is proved that the intersecting line of the two curved surface is space curve, and the equation is quartic implicit function with one unknown.
第6周隐函数的导数。由参数方程所确定的函数的倒数。数学实验一。 二。
Week 6 The derivative of implicit function. the function's derivate by parameter equation.
第6周隐函数的导数。由参数方程所确定的函数的倒数。数学实验一。 二。
Week 6 The derivative of implicit function. the function's derivate by parameter equation.
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