本章只介绍了误差的基本概念和数值计算的若干原则，这对处理数值计算问题是必需的，但是仅这些还远远不能解决工程和科学计算中更为复杂的误差分析问题，还需专门分门别类地进行研究。-chapter on the error only the basic concept and numerical calculation of certain principles, which deal with numerical calculation is necessary, but they are far from alone will not solve engineering and scientific calculations more complex error analysis, specialized categories needed to conduct research.