This is my relational notation for mathematical expressions:
When a value i.e [S: 3;sin \ 5;cos ...] contains another operation (A, S, M, D, R, E, or P) the operation will be separated by (n 1) \'s from the rest of the function.
e.g. [S: 3;sin \ 5;cos \\ D13] = ((sin(3) - cos(5))/13)
Also this applies to functions.
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