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SetterAssumptions

Guides

  • SetterAssumptions Package

Symbols

  • AssumeInteger
  • Assume
  • AssumePositive
  • AssumeReal
  • CurrentAssumptions
  • FrameAndStoreMatrix
  • FrameAndStore
  • RemoveAllAssumptions
  • RemoveAssumptions
  • Restart
KevinSetter`SetterAssumptions`
AssumeReal
​
AssumeReal
[v]
adds
Element
[v,
Reals
] to the list of current assumptions.
v
consists of one or more variable names.
​
Examples  
(1)
Basic Examples  
(1)
By default, Mathematica assumes that variables are complex-valued. Accordingly, the following expression does not simplify
In[1]:=
Conjugate[r
x

]//Simplify
Out[1]=
-Conjugate[x]

Conjugate[r]
Assume that variables are positive real numbers:
In[2]:=
AssumeReal
[r,x]
Out[2]=
r∈&&x∈
The expression now simplifies:
In[3]:=
Conjugate[r
x

]//Simplify
Out[3]=
-x

r
""

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