Calculated Industries 4065 v3.0 User Manual
Page 25

24 — C
ONSTRUCTION
M
ASTER
®
P
RO
/ T
RIG
/ D
ESKTOP
The
Trig model (#4080) and Desktop (#44080) calculators have
standard trigonometric keys, in addition to right triangle/rafter keys
(e.g., rise, run, diagonal), for advanced right triangle mathematics.
The sine, cosine and tangent of an angle are defined in relation to
the sides of a right triangle.
Using the
Ç
key with the trigonometric function displays the
inverse (arcsine, arccosine, and arctangent). These are used to find
the angle for the sine, cosine, or tangent value entered.
S
Sine Function — Calculates the sine of an entered
degree or non-dimensioned* value.
Ç S
Arcsine (sin
-1
) — Calculates the angle for the
entered or calculated sine value.
ç
Cosine Function — Calculates the cosine of a
degree or non-dimensioned* value.
З з
Arccosine (cos
-1
) — Calculates the angle for the
entered or calculated cosine value.
t
Tangent Function — Calculates the tangent of a
degree or non-dimensioned* value.
Ç t
Arctangent (tan
-1
) — Calculates the angle for the
entered or calculated tangent value.
*Note: Cannot use on dimensioned values.
4065UG-E-B 6/9/04 1:49 PM Page 24