36
Chapter 1: Operating the TI
-
86
01OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 36 of 2201OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 36 of 22
Vector Coordinate Modes
RectV
(rectangular vector coordinates) Displays answers in the form
ã
x y
ä
for two-element
vectors and
ã
x y z
ä
for three-element vectors
CylV
(cylindrical vector coordinates) Displays results in the form
ã
r
±
q
ä
for two-element
vectors and
ã
r
±
q
z
ä
for three-element vectors
SphereV
(spherical vector coordinates) Displays results in the form
ã
r
±
q
ä
for two-element
vectors and
ã
r
±
q
±
f
ä
for three-element vectors
Differentiation Modes
dxDer1
(exact differentiation) Uses
der1
(Chapter 3) to differentiate exactly and calculate the
value for each function in an expression (
dxDer1
is more accurate than
dxNDer
, but it
restricts the kinds of functions that are valid in the expression)
dxNDer
(numeric differentiation) Uses
nDer
to differentiate numerically and calculate the value
for an expression (
dxNDer
is less accurate than
dxDer1
, but more kinds of functions
are valid in the expression)
Vector modes do not affect
how you enter vectors.
The value stored to
d
affects
dxNDer
(Appendix).
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