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介绍了数值计算中的误差类别,用数学表达式举例,说明了截断误差,根据IEEE754标准用数学表达式说明了舍入误差;并对截断误差与舍入误差进行了简单的分析;最后给出了数值计算中应注意的事项。 更多还原

【Abstract】 This paper introduced the classification of numerical calculation errors,and used math expressions as examples to illustrate truncation error.According to IEEE754 criterion,this paper used math expressions to explain rounding error.Then this paper simply analyzed the truncation error and rounding error.At last,this paper pointed out attentions in the numerical calculation. 更多还原