TEVAL

Type:

Function

 

 

 

Description:

For the specified operation, performs the same function as EVAL, and returns the time taken to

 

perform the evaluation as well as the result.

 

 

Access:

…µTEVAL

 

 

 

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 2/Item 2

Level 1/Item 1

 

 

 

 

 

 

 

 

Object

→

result

time taken

See also:

EVAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEXPAND

 

 

 

 

 

Type:

Command

 

 

 

Description:

Expands transcendental functions.

 

 

 

Access:

!Ð, PALG, PTRIG, …×L, …ÑL, PLEXPLN

Input:

An expression.

 

 

 

Output:

The transformation of the expression.

 

 

 

Flags:

Exact mode must be set (flag –105 clear).

 

 

 

Numeric mode must not be set (flag –3 clear).

 

 

 

Radians mode must be set (flag –17 set).

 

 

Example:

Expand the following expression:

 

 

 

 

ln(sin(x+y))

 

 

 

Command:

TEXPAND(LN(SIN(X+Y)))

 

 

 

Result:

LN(COS(Y)*SIN(X)+SIN(Y)* COS(X))

 

 

See also:

TCOLLECT, TLIN

 

 

 

TEXT

Command

 

 

 

Type:

 

 

 

Description:

Show Stack Display Command: Displays the stack display.

 

 

TEXT switches from the graphics display to the stack display. TEXT does not update the stack

 

display.

 

 

 

Access:

!° LOUT TEXT

 

( °is the left-shift of the Nkey).

Input/Output:

None

 

 

 

Example:

The command sequence DRAW 5 WAIT TEXT selects the graphics display and plots the

 

contents of the reserved variable EQ (or reserved variable ΣDAT). It subsequently waits for 5

 

seconds, and then switches back from the graphics display to the stack display.

 

See also:

PICTURE, PVIEW

 

 

 

 

 

 

 

 

 

THEN

Command

 

 

 

Type:

 

 

 

Description:

THEN Command: Starts the true-clause in conditional or error-trapping structure.

 

See the IF and IFFER entries for more information.

 

Access:

!°BRANCH IF/CASE THEN

( °is the left-shift of the Nkey).

 

Input/Output:

None

 

 

 

See also:

CASE, ELSE, END, IF IFERR

 

 

 

 

 

 

 

 

 

3-252 Full Command and Function Reference