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intDiv()
Catalog >
intDiv(Number1, Number2) ⇒ integer
intDiv(List1, List2) ⇒ list
intDiv(Matrix1, Matrix2) ⇒ matrix
Returns the signed integer part of
(Number1 ÷ Number2).
For lists and matrices, returns the signed
integer part of (argument1÷argument2)
for each element pair.
interpolate ()
Catalog >
interpolate(xValue, xList, yList,
yPrimeList) ⇒ list
This function does the following:
Given xList, yList=f(xList), and
yPrimeList=f'(xList) for some unknown
function f, a cubic interpolant is used to
approximate the function f at xValue. It is
assumed that xList is a list of
monotonically increasing or decreasing
numbers, but this function may return a
value even when it is not. This function
walks through xList looking for an interval
[xList[i], xList[i+1]] that contains xValue.
If it finds such an interval, it returns an
interpolated value for f(xValue); otherwise,
it returns undef.
xList, yList, and yPrimeList must be of
equal dimension ≥ 2 and contain
expressions that simplify to numbers.
xValue can be a number or a list of
numbers.
Differential equation:
y'=-3•y+6•t+5 and y(0)=5
To see the entire result, press £ and then
use ¡and¢ to move the cursor.
Use the interpolate() function to calculate the
function values for the xvaluelist:
invχ
2
()
Catalog >
invχ
2
(Area,df)
invChi2(Area,df)
Computes the Inverse cumulative χ
2
(chi-
square) probability function specified by
degree of freedom, df for a given Area
under the curve.
Alphabetical Listing 71
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