1CSQRT(3)                   Linux Programmer's Manual                  CSQRT(3)
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NAME

6       csqrt, csqrtf, csqrtl - complex square root
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SYNOPSIS

9       #include <complex.h>
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11       double complex csqrt(double complex z);
12       float complex csqrtf(float complex z);
13       long double complex csqrtl(long double complex z);
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15       Link with -lm.
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DESCRIPTION

18       Calculate  the  square root of a given complex number, with nonnegative
19       real part, and with a branch cut along the negative real  axis.   (That
20       means  that  csqrt(-1+eps*I)  will  be close to I while csqrt(-1-eps*I)
21       will be close to -I, if eps is a small positive real number.)
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VERSIONS

24       These functions first appeared in glibc in version 2.1.
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CONFORMING TO

27       C99.
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SEE ALSO

30       cabs(3), cexp(3), complex(7)
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COLOPHON

33       This page is part of release 3.25 of the Linux  man-pages  project.   A
34       description  of  the project, and information about reporting bugs, can
35       be found at http://www.kernel.org/doc/man-pages/.
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39                                  2008-08-11                          CSQRT(3)
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