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Software Interest Group
The UA Math Department Software Interest Group (SWIG)
is a self-organized informal group, consisting of faculty members,
visitors, staff, and graduate students, whose goal is to promote and
advance computer and software literacy among the members of the department
through meetings, talks, and discussions.
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For more details, and talks in past semesters, consult the full schedule of talks.
Past topics can (and should) be repeated occasionally. In addition, here are some topics people might like to hear about:
To give a talk, please contact swig@math.arizona.edu.
In[15]:= Solve[(x+2)^2 == a, x]
-4 + 2 Sqrt[a] -4 - 2 Sqrt[a]
Out[15]= {{x -> --------------}, {x -> --------------}}
2 2
In[16]:= Solve[x^3 - 3x^2 -4x + 12 == 0, x]
Out[16]= {{x -> -2}, {x -> 3}, {x -> 2}}
In[18]:= Solve[{a x + b y == 1, x + y == 2}, {x, y}]
1 2 b 1 2 a
Out[18]= {{x -> -(------) + ------, y -> ------ - ------}}
-a + b -a + b -a + b -a + b
In[19]:= Solve[x^2 + 1 == 0, x]
Out[19]= {{x -> I}, {x -> -I}}
In[36]:= NSolve[x^4 + 1 == 0, x]
Out[36]= {{x -> 0.707106781186548 + 0.707106781186548 I},
> {x -> -0.707106781186548 + 0.707106781186548 I},
> {x -> -0.707106781186548 - 0.707106781186548 I},
> {x -> 0.707106781186548 - 0.707106781186548 I}}
In[24]:= FindRoot[Cos[x] == x, {x, 1}]
Out[24]= {x -> 0.739085}
