20010102
u
solve
Function: Solves an equation.
Syntax: solve( Eq [,variable] [ ) ]
solve( {Eq-1,..., Eq-
n
}, {variable-1,...,variable-
n
} [ ) ]
○ ○ ○ ○ ○
Example
To solve AX + B = 0 for X
1
(TRNS)
e
(solve)
av
(A)
v
+
al
(B)
!
.
(=)
a
w
○ ○ ○ ○ ○
Example
To solve simultaneous linear equation 3X + 4Y = 5, 2X – 3Y = – 8
1
(TRNS)
e
(solve)
!
*
( { )
d
a
+
(X)
+e
a
-
(Y)
!
.
(=)
f,
c
a
+
(X)
-d
a
-
(Y)
!
.
(=)
-
i
!
/
( } )
,
!
*
( { )
a
+
(X)
,
X = – 1
a
-
(Y)
!
/
( } )
w
Y = 2
• X is the default when no variable is specified.
u
tExpand (tExpnd)
Function: Employs the addition theorem to expand a trigonometric function.
Syntax: tExpand( {Exp/List/Mat/Vect} [ ) ]
○ ○ ○ ○ ○
Example
To employ the addition theorem to expand sin(A+B)
1
(TRNS)
f
(TRIG)
b
(tExpnd)
s
(
av
(A)
+
al
(B)
w
cos(B) • sin(A) + sin(B) • cos(A)
u
tCollect (tCollc)
Function: Employs the addition theorem to transform the product of a trigonometric
function to a sum.
Syntax: tCollect( {Exp/List/Mat/Vect} [ ) ]
○ ○ ○ ○ ○
Example
To employ the addition theorem to transform sin(A)cos(B) to
trigonometric sum
1
(TRNS)
f
(TRIG)
c
(tCollc)
sav
(A)
cal
(B)
w
7-1-12
Using the CAS (Computer Algebra System) Mode
sin (A + B)
2
sin (A – B)
2
+
– B
A
X =
20011101
Summary of Contents for ALGEBRA FX 2.0 Plus
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