sqrt(3F)

NAME
     sqrt, dsqrt, qsqrt, csqrt, zsqrt, cqsqrt - FORTRAN square root intrinsic
     function

SYNOPSIS
     real r1, r2
     double precision dp1, dp2
     real*16 qp1, qp2
     complex cx1, cx2
     complex*16 cd1, cd2
     complex*32 cq1, cq2

     r2 = sqrt(r1)

     dp2 = dsqrt(dp1)
     dp2 = sqrt(dp1)

     qp2 = qsqrt(qp1)
     qp2 = sqrt(qp1)

     cx2 = csqrt(cx1)
     cx2 = sqrt(cx1)

     cd2 = zsqrt(cd1)
     cd2 = sqrt(cd1)

     cq2 = cqsqrt(cq1)
     cq2 = sqrt(cq1)

DESCRIPTION
     sqrt returns the real square root of its real argument.  dsqrt returns
     the double-precision square root of its double-precision argument.  qsqrt
     returns the real*16 square root of its real*16 argument.  The value of
     the argument of sqrt, dsqrt, and qsqrt must be greater than or equal to
     zero.

     csqrt returns the complex square root of its complex argument.  The
     result of csqrt is the principle value with the real part greater than or
     equal to zero.  When the real part is zero, the imaginary part is greater
     than or equal to zero.

     zsqrt returns the complex*16 square root of its complex*16 argument.

     cqsqrt returns the complex*32 square root of its complex*32 argument.

     sqrt, the generic form, will become dsqrt, qsqrt, csqrt, zsqrt, or cqsqrt
     as required by its argument type.

SEE ALSO
     exp(3M).