Calculus Made Easy by Silvanus Thompson had long lain on my bookshelf unopened so I took it on a long flight. I was hooked and I am now close to completing my Maths degree. Stephen

## In-flight entertainment

Calculus Made Easy by Silvanus Thompson had long lain on my bookshelf unopened so I took it on a long flight. I was hooked and I am now close to completing my Maths degree.

Stephen