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This section describes some of the issues involved in using floating-point numbers.

There is a very nice
paper on floating-point arithmetic
by David Goldberg,
“What Every Computer Scientist Should Know About Floating-point Arithmetic,”
ACM Computing Surveys **23**, 1 (1991-03), 5-48.
This is worth reading if you are interested in the details,
but it does require a background in computer science.

• String Conversion Precision: | The String Value Can Lie. | |

• Unexpected Results: | Floating Point Numbers Are Not Abstract Numbers. | |

• POSIX Floating Point Problems: | Standards Versus Existing Practice. |