Fortunately, the impact of log statements on performance is minimal or nonexistent for most cases, and because the logging tools are easy to use, the learning curve is very small.
Ease of use: Easy to use and short learning curve.
易用性:易于使用,学习曲线短。
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And, in some cases, for example, if you know that the vector field is tangent to the curve or if a dot product is constant or things like that then that might actually give you a very easy answer.