1CSQRT(3)                     complex math routines                    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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CONFORMING TO

24       C99
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SEE ALSO

27       cabs(3), cexp(3), complex(7)
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31                                  2002-07-28                          CSQRT(3)