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General Math Functions (Continued)
and y-values.
Function
Description
Typing Aid
SQRT(x)
Vx .
TAN(x)
Tangent."
TAN
TANH(x)
Hyperbolic tangent.
B(Hyr)
f(x:y)
9 polar coordinate for (x,y) rectangular
B[ANGLE
coordinates.*t
x(r:6)
x-coordinate of polar coordinates.*t
@ (xCcoorD
y(r:6)
y-coordinate of polar coordinates.*t
B (,CooRD]
* Uses the current angular mode—Degrees or Radians.
t The function does not use the coordinate conversion registers.
Statistical Functions*
Function
Description
Typing Aid
b
y-intercept of the line calcu-
{LR. } {b}
lated by linear regression.
m
Slope of the line calculated by
{LR.} {m}
linear regression.
n
Number of x entries or num-
{2} {n}
ber of x,y-pairs.
r
Correlation coefficient be-
{LR. } {r}
tween the data and the line
calculated by linear regres-
sion.
SX
Standard deviation of the x-
{s} {sx}
values.
sy
Standard deviation of the y-
{s} {s»}
values.
=X
Sum of the x-values.
{Z} {x}
=x?2
Sum of the squares of the x-
{2} {x2}
values.
Xy
Sum of the products of the x-
{2} {=x»}
* The statistical functions use the data stored in the statistical registers.
82
6: Evaluating and Solving Equations
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