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Douglas Crockwell first specified and popularized the JSON format.
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cexp2(3) [v7 man page]

CEXP2(3)						     Linux Programmer's Manual							  CEXP2(3)

NAME
cexp2, cexp2f, cexp2l - base-2 exponent of a complex number SYNOPSIS
#include <complex.h> double complex cexp2(double complex z); float complex cexp2f(float complex z); long double complex cexp2l(long double complex z); Link with -lm. DESCRIPTION
The function returns 2 raised to the power of z. CONFORMING TO
These function names are reserved for future use in C99. AVAILABILITY
Not yet in glibc, as at version 2.19. SEE ALSO
cabs(3), cexp(3), clog10(3), complex(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. 2014-08-19 CEXP2(3)

Check Out this Related Man Page

CLOG2(3)						     Linux Programmer's Manual							  CLOG2(3)

NAME
clog2, clog2f, clog2l - base-2 logarithm of a complex number SYNOPSIS
#include <complex.h> double complex clog2(double complex z); float complex clog2f(float complex z); long double complex clog2l(long double complex z); DESCRIPTION
The call clog2(z) is equivalent to clog(z)/log(2). The other functions perform the same task for float and long double. Note that z close to zero will cause an overflow. CONFORMING TO
These function names are reserved for future use in C99. AVAILABILITY
Not yet in glibc, as at version 2.19. SEE ALSO
cabs(3), cexp(3), clog(3), clog10(3), complex(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. 2017-09-15 CLOG2(3)

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