[Maxima-bugs] [ maxima-Bugs-3064709 ] domain error for tan

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Bugs item #3064709, was opened at 2010-09-12 06:02
Message generated for change (Tracker Item Submitted) made by willisbl
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Category: Lisp Core - Trigonometry
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Barton Willis (willisbl)
Assigned to: Nobody/Anonymous (nobody)
Summary: domain error for tan

Initial Comment:
No domain error for tangent:

  (%i4) tan(%pi/2), %piargs : true;
  (%o4) tan(%pi/2)

Domain error for cotangent:

(%i6) cot(0), %piargs : true;
The number 0 isn't in the domain of cot
 -- an error. To debug this try: debugmode(true);
(%i7) cot(0), %piargs : false;
(%o7) cot(0)

Also try integrate(cos(x)^2 / (1 + sin(x)^2)^3,x,0,%pi/2), %piargs : false;


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You can respond by visiting: 
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