Paolo Redaelli personal blog

Category: Documentations

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…

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…

Little, hidden gems.

I was looking for a Tiny Core image with Firefox preinstalled, found this spartan web page: Marketplace – Firefox – GNS3 That has a hidden gem in it: http://downloads.sourceforge.net/project/gns-3/Qemu%20Appliances/linux-tinycore-linux-6.4-firefox-33.1.1-2.img A bootable image with a pretty recent web browser. It’s always useful.

libfixmath

Cross Platform Fixed Point Maths Library Cross Platform Fixed Point Maths Library from Google Code Archive – Long-term storage for Google Code Project Hosting. Grabbed it before Google shut down everything! No need to reimplement everything, just as I plan to do with quad-precision floats.