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Mathematics
Peter Breitfeld's user avatar
Peter Breitfeld's user avatar
Peter Breitfeld's user avatar
Peter Breitfeld
  • Member for 12 years, 2 months
  • Last seen more than 11 years ago
  • Germany
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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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48
Can I simplify an expression into form which uses my own definitions?
34
How to plot Venn diagrams with Mathematica?
31
Usage displays properly only after second call
31
How can I plot the direction field for a differential equation?
26
Finding real roots of negative numbers (for example, $\sqrt[3]{-8}$)