Chapter 21. Obsolete/Deprecated API for PLplot
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## Chapter 21. Obsolete/Deprecated API for PLplot

The purpose of this chapter is to provide minimal documentation for obsolete/deprecated API that appears in our C library to provide backwards compatibility until these functions disappear. Do not use these functions, and if you already use them in legacy PLplot applications, replace them by the suggested equivalents so you won't be caught out when they disappear.

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