V4/man/man3/sqrt.3

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.th SQRT III 3/15/72
.sh NAME
sqrt \*- square root function
.sh SYNOPSIS
.br
.ft B
jsr	r5,sqrt
.s3
double sqrt(x)
.br
double x;
.ft R
.sh DESCRIPTION
The
square root of fr0 (resp. \fBx\fR) is returned (in fr0).
.sh DIAGNOSTICS
The c-bit is
set on negative arguments and 0 is returned.
There is no error return for C programs.
.sh BUGS
No error return from C.