Texas Instruments TI-83 PLUS - Manual (Page 667)

TI-83 Plus Tables and Reference Information 664
Function or Instruction/
Arguments
Result
Key or Keys/
Menu or Screen/Item
FnOn [ function# ,
function# ,..., function n ]
Selects all Y= functions or specified
Y= functions.

Y-VARS On/Off
1:FnOn
:For( variable , begin , end
[, increment ])
: commands
:End
:
commands
Executes commands through End,
incrementing variable from begin by
increment until variable > end .
† 
CTL
4:For(
fPart( value ) Returns the fractional part or parts of
a real or complex number,
expression, list, or matrix. 
NUM
4:fPart(
Ü pdf( x , numerator df ,
denominator df )
Computes the Û distribution
probability between lowerbound and
upperbound for the specified
numerator df (degrees of freedom)
and denominator df .
y =
DISTR
8: Û pdf(
value 4 Frac Displays a real or complex number,
expression, list, or matrix as a fraction
simplified to its simplest terms. 
MATH
1: 4 Frac
Full Sets full screen mode. † z
Full
Func Sets function graphing mode. † z
Func
GarbageCollect Displays the garbage collection
menu to allow cleanup of unused
archive memory. y N
GarbageCollect