通过比较说明：灰色预测精度最高，指数曲线法次之，对数曲线法最低。
Through the compare we can draw a conclusion that the gray forecasting precision is the best, the exponential curve method is the second best, and the logarithmic curve method is the worst.
介绍了一种曲线拟合和函数逼近的对数校直法及对数校直定理。
A new method of fitting curves and approximating functions - "logarithm alignment method" and "logarithm alignment theorem" are introduced in this paper.
从四弧逼近法和宏程序编程方法两方面对数控车削椭圆曲线的精加工和粗加工进行了探讨。
Finishing machining and rough machining for numeric control turning ellipse curve are investigated through four arc approximation method and the macro program method.
从四弧逼近法和宏程序编程方法两方面对数控车削椭圆曲线的精加工和粗加工进行了探讨。
Finishing machining and rough machining for numeric control turning ellipse curve are investigated through four arc approximation method and the macro program method.
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