Operation Manual

Appendix A: Functions and Instructions 354
Float
Sets floating decimal mode. † z
Float
fMax(
expression,
variable,lower,upper
[,tolerance])
Returns the value of variable where the local maximum
of expression occurs, between lower and upper, with
specified
tolerance.

MATH
7:fMax(
fMin(
expression,variable,
lower,upper[,tolerance])
Returns the value of variable where the local minimum
of
expression occurs, between lower and upper, with
specified
tolerance.

MATH
6:fMin(
fnInt(
expression,variable,
lower,upper[,tolerance])
Returns the function integral of expression with respect
to
variable, between lower and upper, with specified
tolerance.

MATH
9:fnInt(
FnOff
[function#,
function#,...,function n]
Deselects all
Y= functions or specified Y= functions. 
Y-VA RS
4:On/Off
2:FnOff
FnOn
[function#,
function#,...,function n]
Selects all Y= functions or specified Y= functions. 
Y-VA RS
4: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(
Üpdf(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
9:
Üpdf(
FRAC-APPROX Answers
Displays answers as fractions, if possible. Fraction
output is attempted from the internal decimal
approximation of results.
z
Answers: FRAC-
APPROX
value4Frac
Displays a real or complex number, expression, list, or
matrix as a fraction simplified to its simplest terms.

MATH
1:
4Frac
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
gcd(
valueA,valueB) Returns the greatest common divisor of valueA and
valueB, which can be real numbers or lists.

NUM
9:gcd(
F unction or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item