CRC Concise Encyclopedia of Mathematics
The format of this work is somewhere between a handbook, a dictionary, and an encyclopedia.
It is written in an informal style intended to make it accessible to a broad spectrum of readers with a wide range of mathematical backgrounds and interests.The selection of topics in this work is more extensive than in most mathematical dictionaries (e.g., Borowski and Borwein’s Harper-Collins Dictionary of Mathematics and Jeans and Jeans’ Muthematics Dictionary).
This work is intended to meet, in some measure, the requirements of those who wish to make some study of Middle-English, and who find a difficulty in obtaining such assistance as will enable them to find out the meanings and etymologies of the words most essential to their purpose.