Solve; Texpand (Texpnd); Tcollect (Tcollc) - Casio Algebra FX 2.0 PLUS User Manual

Using the CAS (Computer Algebra System) Mode
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)!.(=)aw
Example To solve simultaneous linear equation 3X + 4Y = 5, 2X – 3Y = – 8
1(TRNS)e(solve)!*( { )
da+(X)+ea-(Y)!.(=)f,
ca+(X)-da-(Y)!.(=)-i
!/( } ),!*( { )a+(X),
a-(Y)!/( } )w
• 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
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
cos(B) • sin(A) + sin(B) • cos(A)
20011101 20010102
X =
X = – 1
Y =
sin (A – B)
sin (A + B)
+
2 2
– B
A
2