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Peter Breitfeld

I'm a retired college math teacher. I use Mathematica since version 2.2 and begun TeX with emTeX about 1990. Other languages I use are C, Perl, bash ...

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  • Member for 9 years, 3 months
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  • Last seen Jun 26 '13 at 15:59

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46 Can I simplify an expression into form which uses my own definitions? Apr 2 '12
31 How to plot Venn diagrams with Mathematica? Mar 3 '12
31 Usage displays properly only after second call Apr 5 '12
26 How can I plot the direction field for a differential equation? Jul 29 '12
24 Finding real roots of negative numbers (for example, $\sqrt[3]{-8}$) Apr 3 '12
23 Extract current viewing parameters from a 3D view? May 9 '12
23 About the number format in ticks May 9 '12
18 How to calculate scalar curvature Ricci tensor and Christoffel symbols in Mathematica? Jul 31 '12
18 Is it possible to have Mathematica move all terms to one side of an inequality? May 1 '12
17 About multi-root search in Mathematica for transcendental equations May 17 '12
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