Reference Guide

3-94 Full Command and Function Reference
otherwise, the values in (x
min
, y
min
) and (x
max
, y
max
)(the display range) are used. Lines are drawn
between plotted points unless flag –31 is set.
If EQ contains an expression or program, the expression or program is evaluated in Numerical
Results mode for each value of the independent variable to give the values of the dependent
variable. If EQ contains an equation, the plotting action depends on the form of the equation, as
shown in the following table.
Form of Current Equation Plotting Action
expr = expr Each expression is plotted separately. The intersection of
the two graphs shows where the expressions are equal.
name = expr Only the expression is plotted.
indep = constant A vertical line is plotted.
If flag –28 is set, all equations are plotted simultaneously.
If the independent variable in the current equation represents a unit object, you must specify the
units by storing a unit object in the corresponding variable in the current directory. For example,
if the current equation is X+3_m, and you want X to represent some number of inches, you
would store 1_in (the number part of the unit object is ignored) in X. For each plotted point, the
numerical value of the independent variable is combined with the specified unit (inches in this
example) before the current equation is evaluated. If the result is a unit object, only the number
part is plotted.
Access: …µ FUNCTION
Flags: Simultaneous Plotting (–28), Curve Filling (–31)
Input/Output: None
See also: BAR, CONIC, DIFFEQ, FAST3D, GRIDMAP, HISTOGRAM, PARAMETRIC,
PARSURFACE, PCONTOUR, POLAR, SCATTER, SLOPEFIELD, TRUTH, WIREFRAME,
YSLICE
FXND
Type: Command
Description: Splits an object into a numerator and a denominator.
Access: Catalog, …µ
Input: A fraction, or an object that evaluates to a fraction.
Output: The object split into numerator and denominator.
Level 2/Item 1: The numerator.
Level 1/Item 2: The denominator.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Example: Return the numerator and the denominator of the following expression:
x 3–( )
2
z 4+
-------------------
Command: FXND((X-3)^2/(Z+4))
Result: {(X-3)^2, Z+4}
See also: EXLR