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CPROJ(3) Linux Programmer's Manual CPROJ(3)NAMEcproj, cprojf, cprojl - project into Riemann SphereSYNOPSIS#include<complex.h>doublecomplexcproj(doublecomplexz);floatcomplexcprojf(floatcomplexz);longdoublecomplexcprojl(longdoublecomplexz);Link with-lm.DESCRIPTIONThis function projects a point in the plane onto the surface of a Riemann Sphere, the one-point compactifica- tion of the complex plane. Each finite pointzprojects tozitself. Every complex infinite value is pro- jected to a single infinite value, namely to positive infinity on the real axis.VERSIONSThese functions first appeared in glibc in version 2.1.CONFORMINGTOC99.NOTESThe glibc implementation is broken and does something entirely different.SEEALSOcabs(3), complex(7)COLOPHONThis page is part of release 3.22 of the Linuxman-pagesproject. A description of the project, and informa- tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2008-08-11 CPROJ(3)