Owner's Manual

TI-89 / TI-92 Plus Calculus Tools Page 33
oscCircl
(expression, var, circleParameter)
Returns a two-element list that is a parametric representation
of the circle that osculates
expression
.
Use F2 7:Osculating Circle to display the problem-entry
dialog box and example for this function.
plrArcLn
(r(
q
Var),
q
Var, low, up, weight(
q
Var))
Returns the weighted arc displacement in polar coordinates,
where var
q
Var
varies from
lowerLimit
to
upperLimit
, with
r(
q
Var)
and
weight(
q
Var)
being expressions that might depend on
q
Var
.
Use
weight
1 for an unweighted arc displacement.
Use F6 8:Arc Displacement to display the problem-entry
dialog box and example for this function.
potentl
(exprList, xVar, yVar, zVar, x0, y0, z0)
Returns the scalar potential of the three-dimensional
rectangular Cartesian gradient represented by
exprList
, with
the potential = 0 at
{x0, y0, z0}
.
Note
Does not verify that
exprList
is a gradient, so first see if
curl
(exprList, xVar, yVar, zVar)
simplifies to {0,0,0}, as it
should for a gradient.
Use F5 4:Potential to display the problem-entry dialog box
and example for this function.