Calculated Industries 4090 User Manual

POCKET REFERENCE GUIDE — 6
Ç t Arctangent (tan
-1
) —
Gives the angle for the
tangent value
Pythagorean Theorem Keys
R Enters or calculates “x” or
the horizontal leg of a right
triangle
r Enters or calculates “y” or
the vertical leg of a right
triangle
d Enters or calculates “r” or
the hypotenuse (diagonal)
leg of a right triangle
p Enters or calculates the
“theta” or the pitch/slope of
a right triangle
Law of Cosines Keys
Ç 9 Calculates angles A, B and
C, as well as triangle area,
given below entries
Ç 4 Enters Side “a” of a triangle
Ç 5 Enters Side “b” of a triangle
Ç 6 Enters Side “c” of a triangle

Calculated Industries 4090 Specifications

General

Brand	Calculated Industries
Model	4090
Category	Measuring Instruments
Language	English