Before leaving this chapter, it is worthy to note two other types in the language called _Complex and _Imaginary for working with complex and imaginary numbers.
Support for _Complex and _Imaginary types is optional for a compiler.3 For more information, look at the summary of data types in Appendix A.
Source: Kochan Stephen G. (2020), Programming in C: A Complete Introduction to the C Programming Language, Sams; Subsequent edition.