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how to draw the angle bisector of a triangle

The midpoint of a line segment BC is easily computed with the calc library. The line joining a vertex A to the midpoint of BC is the angle bisector only if the triangle ABC is isosceles. But we can ...
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How to draw nodes from a txt file using tikz

If you don't want to employ the functionality of PGFplots which provides functions to read data from files, you can make use of the mechanics provided by the package pgfplotstable. Note that ...

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