Paolo Redaelli personal blog

Cert for both www and plain domain

Just a note for myself: renew Let’s Encrypt certificate to make it valid for both www and plain domain You should be able to do that using the command you originally used to obtain the certificate. Add –force-renewal to force the client to get a new certificate even if the current one isn’t close to…

Unobtanium not needed?

Researchers at the University of Houston have reported a new method for inducing superconductivity in non-superconducting materials, demonstrating a concept proposed decades ago but never proven. From Physicists induce superconductivity in non-superconducting materials Maybe we won’t be so pressed to go digging for unobtanium on Pandora

Mathematical Annotation in R

Mathematical Annotation in R | Vistat Want to write mathematical symbols and expressions in R graphics? You can use an R expression() instead of normal text, e.g. plot(1:10, main = expression(alpha + beta)). Below is a demo that shows you everything about plotting math in R (it was written by the R Core Team; see…