Texas Instruments TI-89 Manual Book page 468

fpart()
MATH/Number menu
fpart(expression1)
fpart(list1)
fpart(matrix1)
Returns the fractional part of the argument.
For a list or matrix, returns the fractional
parts of the elements.
The argument can be a real or a complex
number.
Func
CATALOG
Func
block
EndFunc
Required as the first statement in a multi-
statement function definition.
can be either a single statement or a
block
series of statements separated with the ":"
character.
Note: when()
graph piecewise-defined functions.
gcd()
MATH/Number menu
gcd(number1, number2)
Returns the greatest common divisor of the
two arguments. The
the of their numerators divided by the
gcd
of their denominators.
lcm
In Auto or Approximate mode, the
fractional floating-point numbers is 1.0.
gcd(list1, list2)
Returns the greatest common divisors of the
corresponding elements in
gcd(matrix1, matrix2)
Returns the greatest common divisors of the
corresponding elements in
.
matrix2
Get
CATALOG
Get var
Retrieves a CBL 2é/CBL™ (Calculator-Based
Laboratoryé) or CBRé (Calculator-Based
Rangeré) value from the link port and stores
it in variable
expression
list
matrix
also can be used to define and
expression
of two fractions is
gcd
list
and
list1
matrix
matrix1
.
var
fpart(ë 1.234) ¸
fpart({1, ë 2.3, 7.003}) ¸
In function graphing mode, define a
piecewise function:
Define g(x)=Func:If x<0 Then
:Return 3ù cos(x):Else:Return
3ì x:EndIf:EndFunc ¸
Graph g(x) ¸
gcd(18,33) ¸
gcd of
gcd({12,14,16},{9,7,5}) ¸
.
list2
gcd([2,4;6,8],[4,8;12,16]) ¸
and
Program segment:
©
:Send {3,1,ë 1,0}
:For i,1,99
: Get data[i]
: PtOn i,data[i]
:EndFor
©
Appendix A: Functions and Instructions
ë.234
{0 ë.3 .003}
Done
3
{3 7 1}
2 4
[ ]
6 8
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