band

n 1: an unofficial association of people or groups; "the smart

set goes there"; "they were an angry lot" [syn: {set}, {circle},

{lot}]

2: instrumentalists not including string players

3: a stripe of contrasting color; "chromosomes exhibit

characteristic bands" [syn: {stria}, {striation}]

4: a strip or stripe of a contrasting color or material [syn: {banding},

{stripe}]

5: a group of musicians playing popular music for dancing [syn:

{dance band}, {dance orchestra}]

6: band of radio frequencies for e.g. transmitting a TV signal

[syn: {frequency band}]

7: something elongated that is worn around the body or one of

the limbs

8: a circular band of a precious metal worn on the finger; "she

had rings on every finger" [syn: {ring}]

9: put around something to hold it together

v : bind or tie together, as with a band

NAND

Not AND.

The {Boolean} function which is true unless both its arguments

are true, the {logical complement} of {AND}:

A NAND B ◦ NOT (A AND B) ◦ (NOT A) OR (NOT B)

Its {truth table} is:

A | B | A NAND B

--:---:---------

F | F | T

F | T | T

T | F | T

T | T | F

NAND, like {NOR}, forms a complete set of {Boolean} functions

on its own since it can be used to make NOT, AND, OR and any

other Boolean function:

NOT A ◦ A NAND A

A AND B ◦ NOT (A NAND B)

A OR B ◦ (NOT A) NAND (NOT B)

(1995-01-24)