Blog Archives

Simple Data Science Of Global Warming In KDnuggets

January 20, 2015
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Simple Data Science Of Global Warming In KDnuggets

Would love to get a post from you for KDnuggets (Gregory Piatetsky, KDnuggets President) Some days ago, Gregory Piatetsky invited me to write a post for KDnuggets. I couldn’t say no. He suggested to me some topics and I decided to experiment around climate change to demonstrate how easy is to see some evidences of … Continue reading...

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Maths, Music and Merkbar

January 15, 2015
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Maths, Music and Merkbar

Control is what we already know. Control is where we have already ventured. Control is what helps us predict the future. (Merkbar) Maths and music get along very well. Last December I received a mail from a guy called Jesper. He is one of the two members of Merkbar: a electronic music band from Denmark. … Continue reading...

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First Anniversary Of Ripples

January 7, 2015
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First Anniversary Of Ripples

If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is (John von Neumann) I started this blog one year ago and the experience has been better than I could have imagine: Ripples has been viewed about 30.000 times 49 posts published (The Sound Of Mandelbrot … Continue reading...

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Mixing Benford, GoogleVis And On-Line Encyclopedia of Integer Sequences

December 22, 2014
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Mixing Benford, GoogleVis And On-Line Encyclopedia of Integer Sequences

The chess-board is the world; the pieces are the phenomena of the universe; the rules of the game are what we call the laws of Nature (T. H. Huxley) One of the greatest packages I discovered recently is googleVis. While plotting with ggplot can be sometimes very arduous, doing plots with googleVis is extremely easy. … Continue reading...

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The Awesome Parrondo’s Paradox

December 15, 2014
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The Awesome Parrondo’s Paradox

A technique succeeds in mathematical physics, not by a clever trick, or a happy accident, but because it expresses some aspect of physical truth (O. G. Sutton) Imagine three unbalanced coins: Coin 1: Probability of head=0.495 and probability of tail=0.505 Coin 2: Probability of head=0.745 and probability of tail=0.255 Coin 3: Probability of head=0.095 and … Continue reading...

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Going Bananas #1: Superman Was Born In Kentucky!

December 8, 2014
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Going Bananas #1: Superman Was Born In Kentucky!

Who knows? Could be the tropic heat or something that I eat, that makes me gonzo (I’m Going Bananas, Madonna) This is the first post of a new category called “Going Bananas” in which I will post totally crazy experiments. My aim is to try some techniques without taking care of making serious things. These are … Continue reading...

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The World We Live In #3: Breastfeeding

December 1, 2014
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The World We Live In #3: Breastfeeding

Facts are stubborn, but statistics are more pliable (Mark Twain) According to World Health Organization, exclusive breastfeeding is recommended up to 6 months of age, with continued breastfeeding along with appropriate complementary foods up to two years of age or beyond. Thus, the defining characteristic of continued breastfeeding is that the infant between 6 months and … Continue reading...

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Circlizing Numbers

November 24, 2014
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Circlizing Numbers

She makes the sound the sea makes to calm me down (Dissolve Me, Alt-J) Searching how to do draw chord diagrams in the Internet with ggplot2 I found a very-easy-to-use package called circlize which does exactly that. A chord diagram shows relationships between things so the input to draw it is simply a matrix with the intensity … Continue reading...

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Hi

November 17, 2014
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Hi

Why do some mathematicians wear a white coat? Are they afraid to be splashed by an integral? (Read on Twitter) If you run into someone wearing a white coat who tells you something like e raised to minus 3 by zero point five plus x squared plus y squared between two plus e raised to minus x squared minus y squared

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3D-Harmonographs In Motion

November 10, 2014
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3D-Harmonographs In Motion

I would be delighted to co write a post (Andrew Wyer) One of the best things about writing a blog is that occasionally you get to know very interesting people. Last October 13th I published this post about the harmonograph, a machine driven by pendulums which creates amazing curves. Two days later someone called Andrew Wyer made this comment

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