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mattkeeter.com
| | hadrienj.github.io
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| | In this post, we will learn about the Moore Penrose pseudoinverse as a way to find an approaching solution where no solution exists. In some cases, a system ...
| | nhigham.com
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| | A real $latex n\times n$ matrix $LATEX A$ is symmetric positive definite if it is symmetric ($LATEX A$ is equal to its transpose, $LATEX A^T$) and $latex x^T\!Ax > 0 \quad \mbox{for all nonzero vectors}~x. $ By making particular choices of $latex x$ in this definition we can derive the inequalities $latex \begin{alignedat}{2} a_{ii} &>0...
| | opensourc.es
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| | Bézier curve basics and animations
| | www.mattlayman.com
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| In this series of posts, I'm going to examine common design patterns in Python that make Python code feel "Pythonic." This fourth post turns our attention to the built-in functions and the power of knowing what is immediately at your fingertips.