Texas Instruments PLUS TI-89 - Manual (Page 88)

Chapter 3: Symbolic Manipulation 71
03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/01 2:12 PM Page 71 of 24
Menu Item Description
Trig Displays the submenu:
tExpand Expands trig expressions with angle sums
and multiple angles.
tCollect Collects the products of integer powers of
trig functions into angle sums and
multiple angles.
tCollect is the opposite of
tExpand .
Complex Displays the submenu:
These are the same as solve , factor , and zeros ; but
they also compute complex results.
Extract Displays the submenu:
getNum Applies comDenom and then returns the
resulting numerator.
getDenom Applies comDenom and then returns the
resulting denominator.
left Returns the left-hand side of an equation
or inequality.
right Returns the right-hand side of an equation
or inequality.
Note: The left and right
functions are also used to
return a specified number of
elements or characters from
the left or right side of a list
or character string.