218 Chapter 11: Trigonometry
7311ENG.DOC CH 11 Trigonometry, English Julie Hewlett Revised: 05/26/98 11:12 AM Printed: 05/19/99 9:02
AM Page 218 of 12
Entering Angles in DMS NotationEntering Angles in DMS Notation
-
u
"
1, 2, and 3 1, 2, and 3
DMS (degrees¡ minutes' seconds") is often used for angles
involving latitude and longitude. The degrees can be any real
number; minutes and seconds must be 0. To enter an angle
in DMS notation, use the - u ANGLE menu.
If you enter the angle of a trig function, where the angle is in
DMS notation (as shown in the following example), the angle
is interpreted as degrees, even in Radian mode.
Calculate sin(30¡10'23") in Degree and Radian mode.
1. Select Degree Angle mode.
.##b
2. Return to the Home screen,
and clear it, if desired.
-l:
3. Enter sin(30¡10'23").
-u1
30-u"1
10-u"2
23-u"3E
b
4. Select Radian Angle mode.
.##"b
³
30¡10'23"
30 - u " 1
10 - u " 2
23 - u " 3