Calculator User Manual

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Chapter 1: Operating the TI

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

x y

for two-element

vectors and

x y z

for three-element vectors

CylV

(cylindrical vector coordinates) Displays results in the form

for two-element

vectors and

for three-element vectors

SphereV

(spherical vector coordinates) Displays results in the form

for two-element

vectors and

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

affects

dxNDer

(Appendix).