HP 40gs User Manual
Page 223
Computer Algebra System (CAS)
14-41
TAN2CS2 transforms this expression by replacing tan(x)
with .
Typing:
TAN2CS2(TAN(X))
gives:
TAN2SC
Replace tan(x) with sin(x)/cos(x)
TAN2SC has a trigonometric expression as an argument.
TAN2SC transforms this expression by replacing tan(x)
with .
Typing:
TAN2SC(TAN(X))
gives:
TAN2SC2
Transform tan(x) with sin(2x) and cos(2x)
TAN2SC2 has a trigonometric expression as an
argument.
TAN2SC2 transforms this expression by replacing tan(x)
with
Typing:
TAN2SC2(TAN(X))
gives:
TCOLLECT
Reconstruct the sine and the cosine of the same angle
TCOLLECT has a trigonometric expression as an
argument.
1
2 x
⋅
(
)
cos
–
2 x
⋅
(
)
sin
--------------------------------
1
2 x
⋅
(
)
cos
–
2 x
⋅
(
)
sin
--------------------------------
x
( )
sin
x
( )
cos
----------------
x
( )
sin
x
( )
cos
----------------
2 x
⋅
(
)
sin
1
2 x
⋅
(
)
cos
+
---------------------------------
2 x
⋅
(
)
sin
1
2 x
⋅
(
)
cos
+
---------------------------------
hp40g+.book Page 41 Friday, December 9, 2005 1:03 AM