Expreg; Factor() - Texas Instruments TI-NSPIRE Reference Manual

ExpReg

X, Y , Freq , Category, Include
ExpReg [ [ ] [
Calculates the exponential regression. A summary of results is stored
in the stat.results variable. (See page 76.)
All the arguments must have equal dimensions except for Include.
X represents xlist.
Y represents ylist.
Freq represents frequency list.
Cetegory represents category codes.
Include represents category include list.
Output variable
stat.RegEqn
stat.a, stat.b
2
stat.r
stat.r
stat.Resid
stat.ResidTrans
stat.XReg
stat.YReg
stat.FreqReg
F

factor()

rationalNumber
returns the rational number factored into
factor( )
primes. For composite numbers, the computing time grows
exponentially with the number of digits in the second-largest factor.
For example, factoring a 30-digit integer could take more than a day,
and factoring a 100-digit number could take more than a century.
To stop (break) a computation, press
Note:
If you merely want to determine if a number is prime, use
instead. It is much faster, particularly if rationalNumber is not prime
and if the second-largest factor has more than five digits.
28
]]
Description
·
x
Regression equation: a (b) .
·
Regression coefficients: y = a
Coefficient of determination.
Correlation coefficient for linear model.
Residuals of the curves fit = y - a
Residuals associated with linear fit of transformed data.
List of data points in the modified X List actually used in the regression based on restrictions of Freq,
Category List, and Include Categories.
List of data points in the modified Y List actually used in the regression based on restrictions of Freq,
Category List, and Include Categories.
List of frequencies corresponding to stat.XReg and stat.YReg.
w
.
isPrime()
x
(b) .
·
x
(b) .
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