Production of Audio Equipment
(units: 1000 sets)
Product | 1984 | 1985
General radio | 8,895 | 8,770
Clock radio | 5,467 | 6,500
Radio/cassette | 29,734 | 27,523
Tape deck | 11,788 | 14,300
Car radio | 9,450 | 10,398
Car stereo | 15,670 | 17,456
Output Devices
Port | Device
1 | User console
2 | Monochromatic graphics terminal
3, 4, 5 | Color graphics terminal
()
font position | font
1 | Times Roman
2 | Times Italic
3 | Times Bold
4 | Helvetica
5 | Constant-Width
()
 |  | Unit
Item | Qnty. | Price | Cost
Dt. Coke | 2 | 1.39 | 2.78
Crest | 1 | 1.99 | 1.99
Kiwi Pol. | 1 | 0.79 | 0.79
Selzer | 6 | 0.25 | 1.50
 |  | Subtotal | 7.06
 |  | 6% Tax | 0.42
 |  | Total | 7.48
()
item denotation | item
sum | $sum$
int | $int$
prod | $prod$
union | $union$
inter | $inter$
oppE | $oppE$
Euler's Identities

expression | identity
$sin~theta$ | ${e sup {i theta}~-~e sup {-i theta}} over 2i$
$cos~theta$ | ${e sup {i theta}~+~e sup {-i theta}} over 2$
$tan~theta$ | ${e sup {i theta}~-~e sup {-i theta}} over {i(e sup {i theta}~+~e sup{-i theta})}$