Example:

Replace with zero the terms smaller than EPS in the expression: 10-13x+ 10-2

Command:

EPSX0(1E-13*X+.01)

Result:

0*X+.01

EQNLIB

Type:

Command

 

 

 

Description:

Starts the Equation Library application.

 

 

Access:

GEQUATION LIBRARY

 

 

 

Input/Output:

None

 

 

 

See also:

MSOLVR, SOLVEQN

 

 

 

 

 

 

 

 

 

 

EQW

Command

 

 

 

Type:

 

 

 

Description:

Opens Equation Writer, where you can edit an expression.

 

 

Puts an object into the Equation Writer.

 

 

Access:

…µEQW

 

 

 

 

(Non-programmable access is via

˜when there is an algebraic object on the stack. To start a

 

new equation when not entering a program object, press …³)

 

Input/Output:

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

 

 

 

exp1

 

→

exp2

 

 

 

 

 

 

 

See also:

EDIT, EDITB, VISIT, VISITB

 

 

 

 

 

 

 

 

 

 

EQ→

Command

 

 

 

Type:

 

 

 

Description:

Equation to Stack Command: Separates an equation into its left and right sides.

 

If the argument is an expression, it is treated as an equation whose right side equals zero.

Access:

!°TYPE LEQ→

 

( °is the left-shift of the N key).

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 2/Item 1

Level 1/Item 2

 

 

 

 

 

 

 

 

 

 

'symb1=symb2'

→

'symb1'

'symb2'

 

 

 

z

→

z

0

 

 

 

'name'

→

'name'

0

 

 

 

'x_unit'

→

'x_unit'

0

 

 

 

'symb'

→

'symb'

0

 

ARRY→,

 

 

 

 

See also:

 

DTAG, LIST→, OBJ→, STR→

 

 

 

 

 

 

 

 

 

ERASE

Command

 

 

 

Type:

 

 

 

Description:

Erase PICT Command: Erases PICT, leaving a blank PICT of the same dimensions.

Access:

…µERASE

 

 

 

Input/Output:

None

 

 

 

See also:

DRAW

 

 

 

Full Command and Function Reference 3-75