© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide For Teachers
83
Inverse Tangent
%
Ÿ
Use this formula to find the angle of
depression. Round your answer to
the nearest tenth, and then return
to floating decimal mode.
TAN x = 600/2500
Press Display
%
Ÿ
600
W
2500
E
<
tan
-1
(600/25
¹
13.49573328
DEG
%
©
"
"
F 0 1 2 3 4 5 6 7 8 9
-
DEG
<
tan
-1
(600/25
¹
'
13.5
FIX
DEG
%
©
8
tan
-1
(600/25
¹
'
13.49573328
DEG