• ArcTan[z] gives the arc tangent of the complex number z.
• ArcTan[x, y] gives the arc tangent of , taking into account which quadrant the point is in.
• Mathematical function (see Section A.3.10
• All results are given in radians.
• For real z
, the results are always in the range
has branch cut discontinuities in the complex z
plane running from
• If x
is complex, then ArcTan[x, y]
, ArcTan[x, y]
gives the number
• New in Version 1.