A Gentle Yes • • •

A gentle introduction to

The PythonTEX package allows authors to combine computational and typesetting tasks by embedding Python code in TEX documents. This package allows access to many powerful Python modules, providing support for such things as symbolic mathematics, plotting, arbitrary precision numerical calculations, and networking. Python’s intuitive syntax, popularity, and extensibility along with TEX’s formatt...

Sex during pregnancy: Yes, Yes, Yes!

Regular readers of this Journal will recall that it was just over a year ago that I was commissioned to explore the issue of ‘Grey Sex’:1 sexuality in the older age group and the challenges that raises for health professionals, not least in leading us to acknowledge that for human beings the sexual impulse does not inevitably fade. Fast forward, and in this Journal issue I want to explore sex a...

Cryptographic Voting - A Gentle Introduction

These lecture notes survey some of the main ideas and techniques used in cryptographic voting systems. The write-up is geared towards readers with little knowledge of cryptography and it focuses on the broad principles that guide the design and analysis of cryptographic systems, especially the need for properly designed security models. We use a system proposed by Fujioka, Okamoto and Ohta as s...

A Gentle Introduction to Tensors

Expectation Maximization: a Gentle Introduction

This tutorial was basically written for students/researchers who want to get into first touch with the Expectation Maximization (EM) Algorithm. The main motivation for writing this tutorial was the fact that I did not find any text that fitted my needs. I started with the great book “Artificial Intelligence: A modern Approach”of Russel and Norvig [6], which provides lots of intuition, but I was...