Texas TI-86 用户手册

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 22

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 22

Vector Coordinate Modes

(rectangular vector coordinates) Displays answers in the form 

for two-element

vectors and 

 for three-element vectors

(cylindrical vector coordinates) Displays results in the form 

 

q

 for two-element

vectors and 

q z

 for three-element vectors

(spherical vector coordinates) Displays results in the form 

r 

 

q

 for two-element

vectors and 

q 

f

 for three-element vectors

Differentiation Modes

(exact differentiation) Uses 

 (Chapter 3) to differentiate exactly and calculate the

value for each function in an expression (

 is more accurate than 

, but it

restricts the kinds of functions that are valid in the expression)

(numeric differentiation) Uses 

 to differentiate numerically and calculate the value

for an expression (

 is less accurate than 

, but more kinds of functions

are valid in the expression)

Vector modes do not affect
how you enter vectors.

The value stored to 

 affects

 (Appendix).