Reference Guide

Full Command and Function Reference 3-75
Example: Replace with zero the terms smaller than EPS in the expression: 10
-13
x + 10
-2
Command: EPSX0(1E-13*X+.01)
Result: 0*X+.01
EQNLIB
Type: Command
Description: Starts the Equation Library application.
Access: G EQUATION LIBRARY
Input/Output: None
See also: MSOLVR, SOLVEQN
EQW
Type: Command
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
exp
1
→
exp
2
See also: EDIT, EDITB, VISIT, VISITB
EQ→
Type: Command
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 L EQ → ( °is the left-shift of the N key).
Input/Output:
Level 1/Argument 1 Level 2/Item 1 Level 1/Item 2
'symb
1
=symb
2
'
→
'symb
1
' 'symb
2
'
z
→
z 0
'name'
→
'name' 0
'x_unit'
→
'x_unit' 0
'symb'
→
'symb' 0
See also: ARRY→, DTAG, LIST→, OBJ → , STR →
ERASE
Type: Command
Description: Erase PICT Command: Erases PICT, leaving a blank PICT of the same dimensions.
Access: …µ ERASE
Input/Output: None
See also: DRAW