Publications by Daniel Marcelino

Isn’t sad that all that matters in an election is the candidate’s height?

I came across the claim in the US press suggesting that the taller the candidate, the better his/her chances for success in presidential elections. After a little search, I found this Wikipedia entry, and even some academic research on the issue, mainly relating this phenomenon to some sort of evolutionary instinctual preference. At least in the ...

1292 sym 2 img

The butterfly curve

I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5). Where t stands for time and λ for a user input variable. I used ggplot to create a plot of the butterfly curve with...

887 sym R (727 sym/1 pcs) 2 img