Hyperbolic
Functions
With x in the display:
To
Calculate:
Press:
Hyperbolic sine of x (SINH).
Hyperbolic
cosine
of x (COSH).
Hyperbolic
tangent
of
x
(TANH).
Hyperbolic arc sine
of
x (ASINH).
Hyperbolic arc cosine
of
x (ACOSH).
Hyperbolic arc tangent of x
(ATANH).
Ml
HYP
||
SIN
|
Nil HYP I 1
COS
1
Ml
HYP||TAN|
HII HYP |
\m
ASIN
|
IlllHYPlWACOSl
Ml
HYP
I
Hill
ATANI
Percentage
Functions
(%,
%CHG)
The percentage functions are special (compared with 0 and (T|) be
cause they preserve the value of the base number (in the Y-register)
when they return the result of the percentage calculation (in the X-
register). You can then carry
out
subsequent calculations using both
the base number
and
the result without reentering the base number.
To
Calculate:
Key
In:
x%
of
y
Percentage
change
from y
to
x. (y
¥=
0)
V 1
ENTER
| X \M\ % 1
V 1
ENTER
1 X
Itil
%CHG
|
Example.
Find
the
sales tax at 6%
and
the
total cost of a $15.76
item. Use
FIX
2 display format so the costs are rounded appropriately.
Keys:
iirDiSPl
{FX}
2
Display:
Description:
Rounds
display
to
two
decimal places.
4:
Real-Number
Functions
59
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