Art of Computer Programming, The: Volume 1: Fundamental Algorithms, 3rd Edition

Appendix B

Index to Notations

In the following formulas, letters that are not further qualified have the following significance:

j, k	integer-valued arithmetic expression
m, n	nonnegative integer-valued arithmetic expression
x, y	real-valued arithmetic expression
f	real-valued or complex-valued function
P	pointer-valued expression (either Λ or a computer address)
S, T	set or multiset
α	string of symbols

Formal symbolism	Meaning	Where defined
V ← E	give variable V the value of expression E	1.1
U ↔ V	interchange the values of variables U and V	1.1
An or A[n]	the nth element of linear array A	1.1
Amn or A[m, n]	the element in row m and column n of rectangular array A	1.1
NODE(P)	the node (group of variables that ...