Numeric precision in SAS

上周学习了点SAS数值精度方面的问题，觉得这相关内容还是很值得发掘的，自己小做了个PPT，目录如下：

1.Two aspects of numeric data in SAS

2.Floating-point (real binary)

• Floating point representation
• Concepts
• IEEE system
• A Example

3.Numeric precision: Integer

• Problem: LENGTH statement
• Reason
• Solution

4.Numeric precision: Fraction

• Problem: LENGTH statement
• Reason
• Solution

5.Other considerations

• Exception
• Formula transmutation

6.Conclusions

ppt文件：numeric precision in SAS(by hssnow)