TI -86 用户手册

 

05FUNC.DOC   TI-86, Chap 5, US English   Bob Fedorisko   Revised: 02/13/01 2:22 PM   Printed: 02/13/01 3:01 PM   Page 78 of 14

♦ 

You can include functions, variables, constants, matrices, matrix elements, vectors,
vector elements, lists, list elements, complex values, or other equations in the equation.

♦ 

If you include matrices, vectors, or complex values, the equation must evaluate to a real
number at each point.

♦ 

You can include another defined function in an equation. For example, given 

and 

, the function 

 would equal 4 plus the sine of x.

♦ 

To enter a function name, select 

 from the equation editor menu, and then enter the

appropriate number.

♦ 

To insert the contents of an equation variable, use 

RCL

 (Chapter 1). To enter the

equation variable at the 

 prompt, use the ALPHA keys, alpha keys, and other

character keys.

♦ 

To select all functions from the home screen or in the program editor, select 

 from

the 

CATALOG

 (or enter the individual characters) and press b.

♦ 

To select specific functions from the home screen or in the program editor, select

 FnOn

from the 

CATALOG

 (or enter the individual characters), enter the number of each

function, and press b. For example, to select 

, 

, and 

, enter 

.

♦ 

To deselect functions from the home screen or in the program editor, use 

 the

same way you use 

 to select functions.

♦ 

When a function evaluates to a non-real number, the value is not plotted on the graph;
no error is returned.

You can edit expressions you
inserted using 

.