HP -28S Manual page 327

TRIG
Command
I
Description
1
Page
SIN
Sine
74
ASIN
Arc sine
74
Row 1
COS
Cosine
74
Aces Arc cosine 74
TAN
Tangent
74
ATAN
Arc tangent
74
I
NEXT
I
P+R Polar-to-rectangular
76
R+P Rectangular-to-polar 76
Row 2 R+C Real-to-complex
76
C+R Complex-to-real 76
ARC Argument 76
I
NEXT
I
+HI'IS
Decimal to hours-minutes-seconds 76
HI'IS+ Hours-minutes-seconds to decimal
76
Row 3 HI'IS+
Hours-minutes-seconds plus 76
HI'IS-
Hours-minutes-seconds minus 76
O+R
Degrees-to-radians 77
R+O
Radians-to-degrees
77
326 D: Menu Map