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General Math Functions (Continued)
Function
Description
Typing Aid
CHG(n1:n
z}
Percent change between
n1
and
n2'
.I%CHGI
COMB(n:r)
Number of combinations of
n
items
.lpROel
taken
r
at a time.
{Cn,r}
COS(x)
Cosine.'
Icosl
COSH(x)
Hyperbolic cosine.
.IHypIICOSI
DEG(x)
Converts x in radians to decimal
. 1
O-RAO I
degrees.
{DEC}
EXP(x)
Natural antilogarithm;
eX.
0
FACT(x)
Factorial; x is an integer
~
O.
.1
PROe I
{n!}
FP(x)
Fractional part.
.1
PARTS I
{FP}
HMS(x)
Converts x in decimal hours (degrees) to
.IH-HMsl
HH.MMSS (DD.MMSS) format.
{otHMS}
HR(x)
Converts x in H.MMSS (D.MMSS) for-
.IH-HMsl
mat to decimal format.
{otHR}
INV(x)
Reciprocal,
1/x.
11/x
I
IP(x)
Integer part.
.1
PARTS I
{I P }
LN(x)
Natural (base e) log.
ILNI
LOG(x)
Common (base 10) log of x.
.1
LOG I
PERM(n:r)
Permutations of
n
items taken
r
at a
.1
PRoel
time.
{P
n,r}
1\"
1\";
3.14159265359 (12 digits).
.[L]
RAD(x)
Converts x in decimal degrees to
.IO-RAOI
radians.
{RAD}
r(x:y)
Radius
polar coordinate for
(x,y)
rectan-
.'RAOIUsl
gular coordinates.*t
RN(x)
x rounded to the number of decimal
.1
PARTS I
{RH}
places in the current display format.
SIN(x)
Sine.*
ISINI
SINH(x)
Hyperbolic sine.
.1
HYP II SIN I
SQ(x)
x
2 .
.C!:J
• Uses the current angular mode-Degrees or Radians.
t The function does
not
use the coordinate conversion registers.
6: Evaluating and Solving Equations
81
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