# Logarithmic, Exponential, And Hyperbolic Functions - HP -28S Manual

For example, convert 141° 26' 15" to decimal degrees.
Enter the number in HMS format.
141.2615
2:
-2.06761537357E-13
1:
0
141. 26150
Convert the number from HMS format to decimal degrees.
HMS-+
3:
-2.06761537357E-13
2:
0
1:
141.4375
The other two functions on this menu row, D-R
and R-D
(radians-ta-degrees) convert a real number between degrees
angular measure and radians angular measure.
Convert the number in level 1 from degrees to radians.
O-+R
3:
-2.06761537357E-13
2:
0
1:
2.46855006079
Altogether, you've calculated:
141 ° 26' 15"
=
141.4375°
Logarithmic, Exponential, and Hyperbolic
Functions
The LOGS menu contains logarithmic and exponential functions, both
common and natural, and hyperbolic functions. For a detailed de-
scription of these functions, refer to "LOGS" in the Reference Manual.
Display the first row of the LOGS menu.
~----~~~~~==~=-~
.1
LOGS
1
3:
-2. 06761537357E-13
2:
0
1:
2.46855006079
Dalll:IlDImIIDlllrnIDlBD
5: Real-Number Functions
77  