Owner's Manual

TI-89 / TI-92 Plus Calculus Tools Page 35
seq2Solv
(k, c, r(n), n, nMin, {u(nMin), u(nMin-1)})
Attempts to return an exact symbolic expression for u(n) that
satisfies the linear 2nd-order constant-coefficient sequence
equation
u(n)=k

u(n-1)+c

u(n-2)+r(n) and ui={u(nMin) , u(nMin-1)}.
Use F4 3:2nd-Order Sequence
to display the problem-entry
dialog box and example for this function.
surfIntg
(density, height, var1, lower1, upper1, var2, lower2(var1), upper2(var1))
Returns the integral of a
density
over surface whose
height
might vary with
var1
and
var2
.
var1
varies from
lower1
to
upper1
,
which must be independent of
var1
and
var2
.
var2
varies from
expression
lower2
to expression
upper2
, which might depend on
var1
. Use
density
1 for a surface area.
Use F6 5:Integral of Density > 1:over a Surface to display the
problem-entry dialog box and example for this function.
tanLine
(expression, var, varValue)
Returns an expression for the line that is tangent to
expression
at
var
=
varValue
. (In contrast, the built-in LineTan command
draws the tangent line but does not reveal its formula.)
Use F2 1:Tangent Line
to display the problem-entry dialog
box and example for this function.