Symbolic Manipulation
251
Finding Proper Fractions and Common Denominators
Use the
propFrac
(
„
7
) and
comDenom
(
„
6
) functions.
In this example:
Find a proper fraction for the expression
(
x
4
N
2x
2
+ x) / (2x
2
+ x + 4)
.
Then transform the answer into a ratio of a
fully expanded numerator and a fully
expanded denominator.
Notice that
propFrac
and
comDenom
perform
opposite operations.
Note:
You can use
comDenom
with an
expression, list, or matrix.
propFrac(
rational expression
[,
var
]
)
for proper fractions with respect
to a variable
comDenom(
expression
[,
var
]
)
for common denominators that collect
similar powers of this variable
If you do this example
on your handheld, the
propFrac
function
scrolls off the top of the
screen.
Содержание Titanium TI-89
Страница 9: ...Getting Started 6 TI 89 Titanium keys Ë Ì Í Ê ...
Страница 34: ...Getting Started 31 2 or D 2 B u s i n e s s D B D B Press Result ...
Страница 43: ...Getting Started 40 3 0 D B D D B D Press Result ...
Страница 44: ...Getting Started 41 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Страница 58: ...Getting Started 55 Example Set split screen mode to TOP BOTTOM Press Result 3 B D ...
Страница 70: ...Getting Started 67 ...
Страница 175: ...Operating the Calculator 172 From the Keyboard ...
Страница 456: ...Tables 453 ...
Страница 503: ...Split Screens 500 Note Both Top Bottom and Left Right splits use the same methods to select an application ...
Страница 527: ...Data Matrix Editor 524 ...
Страница 704: ...Connectivity 701 A TI 89 Titanium and a Voyage 200 linked together I O Port I O Port I O unit to unit cable ...