Propfrac Math/Algebra Menu; Ptchg Catalog; Ptoff/On Catalog; Pttest Catalog - Texas Instruments TITANIUM TI-89 User Manual

propFrac()
MATH/Algebra menu
expression1
propFrac(
propFrac(
as the sum of an integer and a fraction having the
same sign and a greater denominator magnitude
than numerator magnitude.
propFrac(
of proper ratios and a polynomial with respect to
. The degree of
var
the degree of
ratio. Similar powers of
terms and their factors are sorted with
main variable.
If is omitted, a proper fraction expansion is
var
done with respect to the most main variable. The
coefficients of the polynomial part are then made
proper with respect to their most main variable
first and so on.
For rational expressions,
but less extreme alternative to
PtChg
CATALOG
x y
PtChg ,
xList yList
PtChg ,
Displays the Graph screen and reverses the screen
pixel nearest to window coordinates
( , ).
x y
PtOff
CATALOG
x y
PtOff ,
xList yList
PtOff ,
Displays the Graph screen and turns off the
screen pixel nearest to window coordinates
( , ).
x y
PtOn
CATALOG
x y
PtOn ,
xList yList
PtOn ,
Displays the Graph screen and turns on the screen
pixel nearest to window coordinates
( , ).
x y
ptTest()
CATALOG
) ⇒ ⇒ ⇒ ⇒
x y
ptTest ( ,
xList yList
ptTest ( ,
Returns
screen pixel nearest to window coordinates (
is on.
856
]) ⇒ ⇒ ⇒ ⇒
var expression
[,
returns
rational_number
)
rational_expression,var
)
in the denominator exceeds
var
var in the numerator in each proper
var are collected. The
propFrac()
expand()
Boolean constant expression
) ⇒ ⇒ ⇒ ⇒
Boolean constant expression
or . Returns
true false true
propFrac(4/3) ¸
propFrac( ë 4/3) ¸
rational_number
propFrac((x^2+x+1)/(x+1)+
returns the sum
(y^2+y+1)/(y+1),x) ¸
var as the
propFrac(ans(1))
is a faster
.
Note:
similar examples.
PtChg 2,4 ¸
PtOff 2,4 ¸
PtOn 3,5 ¸
ptTest(3,5) ¸
only if the
, )
x y
Appendix A: Functions and Instructions
through show continuing
PtChg PtText
1 + 1/3
ë 1 ì 1/3
true