要准确快速地计算正弦函数和其他函数，需要非常仔细的算法，专门用于避免无意地将小的误差变成大的错误。
Proper calculations of sine and other functions that are both accurate and fast require very careful algorithms designed to avoid accidentally turning small errors into large ones.
一个能很好地展示这类表单用途的例子是如下所示的这个简单的正弦计算器。
The example that best illustrates the use of such forms is a simple sine calculator.
分析了钻杆接头对水平井段钻柱屈曲临界力和弯曲应力的影响，提出了计算钻柱正弦屈曲临界力的新方法。
The effects of the connectors on the critical buckling load and the bending stress of pipes in horizontal section are analyzed.
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