Casio ALGEBRA FX 2.0, User Manual

Page: 289 / 426

19990401
u
solve
Function: Solves an equation.
Syntax: solve( Exp [,variable] [ ) ]
solve( {Exp-1,..., Exp-
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 [ ) ]
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 [ ) ]
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
7-1-8
Using the CAS (Computer Algebra System) Mode
sin (A + B)
2
sin (A – B)
2
+
– B
A
X =