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# Edit detail for SandBoxTraceAffectsResults revision 3 of 3

 1 2 3 Editor: Bill Page Time: 2015/03/16 02:29:45 GMT+0 Note: Bug with trace )off

added:
D(%,x)
%-sin(sqrt(x*x))
normalize %


fricas
integrate(sin(sqrt(x*x)),x)
 (1)
Type: Union(Expression(Integer),...)
fricas
D(%,x)
 (2)
Type: Expression(Integer)
fricas
%-sin(sqrt(x*x))
 (3)
Type: Expression(Integer)
fricas
normalize %
 (4)
Type: Expression(Integer)
fricas
)trace INTEF )math
Packages traced:
ElementaryIntegration(Integer,Expression(Integer))
Parameterized constructors traced:
INTEF
integrate(sin(sqrt(x*x)),x)
1<enter ElementaryIntegration.lfintegrate,43 :
x
2tan(-)
2
arg1= -----------
x 2
tan(-)  + 1
2
arg2= x
2<enter ElementaryIntegration.lfintegrate,43 :
arg1= 0
arg2= x
2>exit  ElementaryIntegration.lfintegrate,43 :
0
1>exit  ElementaryIntegration.lfintegrate,43 :
2
- -----------
x 2
tan(-)  + 1
2
 (5)
Type: Union(Expression(Integer),...)
fricas
D(%,x)
 (6)
Type: Expression(Integer)
fricas
%-sin(sqrt(x*x))
 (7)
Type: Expression(Integer)
fricas
normalize %
 (8)
Type: Expression(Integer)
fricas
)trace INTEF )off
Nothing is traced now.
integrate(sin(sqrt(x*x)),x)
 (9)
Type: Union(Expression(Integer),...)
fricas
D(%,x)
 (10)
Type: Expression(Integer)
fricas
%-sin(sqrt(x*x))
 (11)
Type: Expression(Integer)
fricas
normalize %
x - x
-----
2
>> Error detected within library code:
Hidden constant detected