3/15/72 ATAN, ATAN2 (III)





3/15/72                                         ATAN, ATAN2 (III)





NAME            atan -- arc tangent function



SYNOPSIS        jsr     r5,atan[2]



DESCRIPTION     The atan entry returns the arc tangent of fr0 in

                fr0.  The range is zero to pi/2.  The atan2 entry

                returns the arc tangent of fr0/fr1 in fr0.  The

                range is -pi to pi.  The floating point simula-

                tion should be active in either floating or dou-

                ble mode, but in single precision integer mode.



FILES           kept in /usr/lib/liba.a



SEE ALSO        fptrap(III)



DIAGNOSTICS     --



BUGS            --



OWNER           rhm, dmr, ken
squoze.net
