Calculated Industries 4090 - Manual (Page 69)

68 — ITI S
HEET
M
ETAL
/HVAC P
RO
3) Find the horizontal length ”Xp” between the objects and the hori-
zontal offset “Yp” between the objects:
KEYSTROKE DISPLAY
1. Enter sides a, b and c:
o o 0.
1 1 f 7 i 1 / 2 Ç 4 A 11
FEET
7-1/2
INCH
5 f 2 i Ç 5 B 5
FEET
2
INCH
7 f 9 i 3 / 1 6 Ç 6 C 7
FEET
9-3/16
INCH
2. Calculate and input Theta by subtracting Degree “A” (found by the
Law of Cosines) from 180°:
1 8 0 – Ç 9 /_ A 126.8649°
= 53.13512
(Theta θ)
p /_ Ø 53.13512°
3. Recall stored “c” and input as “r”:
® 6 = d R 7
FEET
9-3/16
INCH
4. Calculate horizontal length “Xp” between the objects:
R X 4
FEET
7-7/8
INCH
5. Calculate horizontal offset “Yp” between the objects:
r Y 6
FEET
2-9/16
INCH
STORED
STORED
STORED