Articles by Paolo Pellizzari

Complex coloring and contour levels

January 5, 2020 | Paolo Pellizzari

I was recently fascinated by the illustration taken from the leaflet https://www.maa.org/sites/default/files/pdf/Mathhorizons/pdfs/ColoringPage_MH_Nov17.pdfI knew that complex functions could be colored in mesmerizing ways but the little book by Julie Barnes, William Kreahling, and Beth Schaubroeck, “Coloring book of ...
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Complex coloring and contour levels

January 5, 2020 | Paolo Pellizzari

I was recently fascinated by the illustration taken from the leaflet https://www.maa.org/sites/default/files/pdf/Mathhorizons/pdfs/ColoringPage_MH_Nov17.pdfI knew that complex functions could be colored in mesmerizing ways but the little book by Julie Barnes, William Kreahling, and Beth Schaubroeck, “Coloring book of ...
[Read more...]

Non-linear dynamics and chaos using R (1)

December 3, 2016 | Paolo Pellizzari

I have been teaching the course "Mathematics" for the PhD students at Ca' Foscari University for a few years. In the lectures I cover some "scattered" material that may prove useful, sooner or later, to develop quantitative models in Economics. One of the weeks of the course is devoted to ...
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MOOC "Take lineaR decisions" (Ca’ Foscari University)

August 22, 2016 | Paolo Pellizzari

The MOOC "Take lineaR decisions" will begin on September 19th 2016, covering some models of decision making mainly based on computational linear algebra (linear systems and eigenvalues/vectors). The course, delivered by prof. Paolo Pellizzari, can be used to acquire practical skills in the use of the open software R in ...
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Nonlinear constraints with a modified constrOptim

September 7, 2015 | Paolo Pellizzari

I often use constrOptim to quickly solve nonlinear optimization problems. constrOptim works well as a general tool to tackle constrained problems like\[\min_{Ax -b \geq0} f(x)\]  There are many other options and packages for specific problems but constrOptim is likely to be the first choice when little is ... [Read more...]

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