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Albert Girard (1595-1632) was a French-born mathematician who studied at the University of Leiden. He was the first to use the abbreviations ‘sin’, ‘cos’ and ‘tan’ for the trigonometric functions.
Left: Albert Girard (1595-1632). Right: Pierre de Fermat (1601-1665)
That’s Maths in The Irish Times this week (TM059, or Search for “thatsmaths” at irishtimes.com) is about data compression and its uses in modern technology.
Left: An equation form Shannon (1948), the paper that launched Information Theory.
Right: Claude Shannon (1916-2001) ©Alcatel-Lucent.
Special Curves
A large number of curves, called special curves, have been studied by mathematicians. A curve is the path traced out by a point moving in space. To keep things simple, we assume that the point is confined to two-dimensional Euclidean space 
![{\mathbf{\gamma} : [a,b]\longrightarrow \mathbb{R}^2}](https://s0.wp.com/latex.php?latex=%7B%5Cmathbf%7B%5Cgamma%7D+%3A+%5Ba%2Cb%5D%5Clongrightarrow+%5Cmathbb%7BR%7D%5E2%7D&bg=ffffff&fg=000000&s=0&c=20201002)
This week’s That’s Maths column in The Irish Times (TM058, or search for “thatsmaths” at irishtimes.com) is about George Boole, the first Professor of Mathematics at Queen’s College Cork.
ThatsMaths 