816
Appendix A: Functions and Instructions
Exit
CATALOG
Exit
Exits the current
For
,
While
,
or
Loop
block.
Exit
is not allowed outside the three looping
structures (
For
,
While
,
or
Loop
).
Program listing:
:0
!
temp
:For i,1,100,1
: temp+i
!
temp
: If temp>20
: Exit
:EndFor
:Disp temp
Contents of
temp
after execution:
21
exp
4444
list()
CATALOG
exp
4444
list(
expression
,
var
)
⇒
⇒
⇒
⇒
list
Examines
expression
for equations that are
separated by the word “or,” and returns a list
containing the right-hand sides of the equations
of the form
var=expression
. This gives you an easy
way to extract some solution values embedded in
the results of the
solve()
,
cSolve()
,
fMin()
, and
fMax()
functions.
Note:
exp
4444
list()
is not necessary with the
zeros
and
cZeros()
functions because they return a list
of solution values directly.
solve(x^2
ì
x
ì
2=0,x)
¸
x=2
or
x=
ë
1
exp
4
list(solve(x^2
ì
x
ì
2=0,x),x)
¸
{
ë
1 2}
expand()
MATH/Algebra menu
expand(
expression1
[
,
var
]
)
⇒
⇒
⇒
⇒
expression
expand(
list1
[
,var
]
)
⇒
⇒
⇒
⇒
list
expand(
matrix1
[
,var
]
)
⇒
⇒
⇒
⇒
matrix
expand(
expression1
)
returns
expression1
expanded
with respect to all its variables. The expansion is
polynomial expansion for polynomials and partial
fraction expansion for rational expressions.
The goal of
expand()
is to transform
expression1
into a sum and/or difference of simple terms. In
contrast, the goal of
factor()
is to transform
expression1
into a product and/or quotient of
simple factors.
expand((x+y+1)^2)
¸
x
ñ
+
2
ø
x
ø
y
+
2
ø
x
+
y
ñ
+
2
ø
y
+
1
expand((x^2
ì
x+y^2
ì
y)/(x^2
ù
y^2
ì
x^2
ù
y
ì
x
ù
y^2+x
ù
y))
¸
expand(
expression1,var
)
returns
expression
expanded with respect to
var
. Similar powers of
var
are collected. The terms and their factors are
sorted with
var
as the main variable. There might
be some incidental factoring or expansion of the
collected coefficients. Compared to omitting
var
,
this often saves time, memory, and screen space,
while making the expression more
comprehensible.
expand((x+y+1)^2,y)
¸
y
ñ
+
2
ø
y
ø
(x
+
1)
+
(x
+
1)
ñ
expand((x+y+1)^2,x)
¸
x
ñ
+
2
ø
x
ø
(y
+
1)
+
(y
+
1)
ñ
expand((x^2
ì
x+y^2
ì
y)/(x^2
ù
y^2
ì
x^2
ù
y
ì
x
ù
y^2+x
ù
y),y)
¸
expand(ans(1),x)
¸
Summary of Contents for Voyage 200
Page 36: ...Getting Started 36 D B D B Press Result ...
Page 45: ...Getting Started 45 3 0 D B D D B D Press Result ...
Page 46: ...Getting Started 46 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 60: ...Getting Started 60 B D Press Result ...
Page 139: ...Previews 139 8 Complete the operation Press 2 d Steps and keystrokes Display 5 f 2 ...
Page 453: ...Differential Equation Graphing 453 ...
Page 468: ...Tables 468 ...
Page 777: ...Activities 777 ...
