He tried, with great success, to show why the introduction of algebraic notation was necessary and inevitable. |
The main innovation was Playfair's use of algebraic notation to abbreviate the proofs which he taught in his class. |
The whole note derives from the semibrevis of mensural notation, and this is the origin of the British name. |
For example, packages for bar charts, UML notation and even Karnaugh maps can be downloaded. |
The notation looks just like contemporary guitar tablature, but my musical knowledge stops around there. |
In this case, the cryptic notation specifies a square pattern with reflections and quarter turns. |