The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
Kick off your book project in 2 hours! Live workshop on Zoom. You’ll leave with a real book project, progress on your first chapter, and a clear plan to keep going. Tuesday, June 16, 2026. Learn more…
practical notes foR data science
This book is actually a cheat sheet about computing matrix algebra operations such as matrix multiplication, inversion and factorization.
It is written foR (aspiring) data scientists where with "foR" (capital letter R) I mean the side of data science addicted to R and its gorgeous ecosystem especially including Rcpp, RcppArmadillo and RcppEigen.
Minimum price
$7.99
$7.99
About the Book
Nobody can be a poet without feeling strong affection for words, at the same time nobody can be serious about data science without becoming close friend to matrices.
The matrix is a tidy mathematical object with its own set of rules, its own algebra that enables knowing matrix structure and interacting with other matrices, vectors and scalars.
This booklet help in strengthen this relationship interacting with matrices by computing some important matrix algebra operations.
About the Author
Mario holds a master level degree in engineering from Politecnico di Milano University and a professional certificate in data science from HarvardX.
He gained a huge experience in managing projects, services and people for IT consulting and service corporations.
The reader can visit the author's blog (https://www.mdt-datascience.com/) for more adventures in data and quantitative analysis.
Click the buttons to get the free sample in PDF or EPUB, or read the sample online here
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.