Reference Guide
Full Command and Function Reference 3-55
Input/Output:
Level 1/Argument 1 Level 1/Item 1
x
key
→
{ x
key1
, ... ,x
key n
}
→
0
→
'S'
→
See also: ASN, RCLKEYS, STOKEYS
DEPND
Type: Command
Description: Dependent Variable Command: Specifies the dependent variable (and its plotting range for
TRUTH plots).
The specification for the dependent variable name and its plotting range is stored in the reserved
variable PPAR as follows:
•
If the argument is a global variable name, that name replaces the dependent variable entry in
PPAR.
•
If the argument is a list containing a global name, that name replaces the dependent variable
name but leaves unchanged any existing plotting range.
•
If the argument is a list containing a global name and two real numbers, or a list containing a
name, array, and real number, that list replaces the dependent variable entry.
•
If the argument is a list containing two real numbers, or two real numbers from levels 1 and 2,
those two numbers specify a new plotting range, leaving the dependent variable name
unchanged. (LASTARG returns a list, even if the two numbers were entered separately.)
The default entry is Y.
The plotting range for the dependent variable is meaningful only for plot type TRUTH, where it
restricts the region for which the equation is tested, and for plot type DIFFEQ, where it specifies
the initial solution value and absolute error tolerance.
Access: …µ
DEPND
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
'global'
→
{ global }
→
{ global, y
start
, y
end
}
→
{y
start
, y
end
}
→
y
start
y
end
→
See also: INDEP
DEPTH
Type: RPL Command
Description: Depth Command: Returns a real number representing the number of objects present on the stack
(before DEPTH was executed).
Access: !°
STACK
L
DEPTH
( °is the left-shift of the Nkey).
I
STACK
L
DEPTH
Input/Output:
Level nLevel 1 Level 1
→
n