User`s guide

Getting Started36
Pi
Pressing \; displays the value of . Although the displayed value is appears in the
current display format, the 12 digit value is actually used for calculations. is often used
during calculations in radians mode, as there are 2 radians in a circle.
Example
Find the surface area of a sphere with a radius of 4.5 centimeters. Use the formula:
Hyperbolic Functions
A7SG]oR
51. 6839 D i sp lays inver s e c os i ne of 0. 62.
4
17.8288 Calculates arccos 0.35 - arccos 0.62.
\5G
17.83 Return display to default format.
Table 2-16 Example using various trigonometric calculations
Keys Display Description
Table 2-17 Example using Pi
Keys Display Description
YP\;
3.14
Displays
.
PY7V\2
20.25
Displays 4.5
2
.
4
254.47 Calculates sphere surface area
in square centimeters.
π
π
π
A 4πr
2
=
π
Table 2-18 Hyperbolic and inverse hyperbolic functions
Keys Description
]rc
Calculates hyperbolic sine, written as,
sinh.
]rR
Calculates hyperbolic cosine, written
as, cosh.
]rC
Calculates hyperbolic tangent, written
as, tanh.
]roc
Calculates inverse hyperbolic sine,
written as, arcsinh, asinh, or, sinh
-1
.
]roR
Calculates inverse hyperbolic sine, also
written, arccosh, acosh, or cosh
-1
.
]roC
Calculates inverse hyperbolic tangent,
also written, arctanh, atanh, or tanh
-1
.