Supplementary Document

POCKET REFERENCE GUIDE — 5
Trigonometric Keys (TRIG MODEL #4080)
S Finds the sine of a degree
or undimensioned value.
Ç S
Arcsine (sin
-1
) — Gives the
angle for the Sine value.
ç Finds the Cosine.
Ç ç
Arccosine (cos
-1
) —
Gives the angle for the
Cosine value.
t Finds the Tangent.
Ç t
Arctangent (tan
-1
) —
Gives the angle for the
Tangent value.
Right Triangle/Roof Framing Keys
p Enters or calculates the
slope (amount of “Rise”
over 12” of “Run”.
Ç p Slope — Enters a Pitch
ratio, or slope (e.g., • 5
8 3 Ç p).
r Enters or calculates the ver-
tical leg of a right triangle.
Ç r
Rake-Wall — Finds the
stud sizes based on entered
right triangle values.