© Convertion of negative number:
Decimal -> Hexadecimal
The EL-512 uses "2's complement" in the internal calculation am
displays the results in 16's complement.
Ex. Key in: 1 ® §28 S Answer: FFFFFFFFPf
Hexadecimal -> Decimal
When 16's complement is converted to decimal, the answer is dis
played in negative decimal number.
Applications
Ex. 1 Base conversion of logarithm
logab = — a = 3, b = 124
log a
124 l»og| m 3 flog] f=~)
4.387609364
Ex. 2 Calculates the surface and the volume of the sphere.
S = 4irr2, V = - J 7TJ-3 Radius r= 12 cm
4 m m t s 12 m ®
’-*■ 1809.557368 (S)
12 0 3 ® [ f l ®
4 EB 3 G=] -> 7238.229474 (V)
^x- 3 Cosine theorem
c = V a2 + b2 — 2ab cos 0
a = 14.7 cm, b = 17.8 cm,
6 = 43°32'54"
Calculates the length c
DEG
14.7 \X*\ (+] 17.8 @ 0 2 ®
14.7 [S 17.8 H 43.3254 (^deg)
® (= ] IS -► 12.39480134
35
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