HP 49g Pocket Guide

30
DELAY
* = function
DELAY Specifies how many seconds the HP 49 waits between
sending lines of information to the printer.
N
x
delay
→
DELKEYS Clears user-defined key assignments. N
x
key
→
DEPND Specifies the dependent variable (and its plotting range
for TRUTH plots).
N
‘ global ’
→
DEPTH Returns a real number representing the number of
objects present on the stack (before DEPTH was
executed).
<N STACK → n
DERIV Returns the partial derivatives of a function, with respect
to the specified variables.*
<$ DERIV
AND INTEG
‘ symb
1
’ z
→ ‘ symb
2
’
DERVX Returns the derivative of a function with respect to the
current variable.*
<$ DERIV
AND INTEG
‘ symb
1
’
→ ‘ symb
2
’
DESOLVE Solves certain first-order ordinary differential equations
with respect to the current variable.
<&
‘ symb
1
’ ‘ symb
2
’
→ ‘ symb
3
’
DET Returns the determinant of a square matrix. < %
OPERATIONS
[[ matrix ]]
→ x
determinant
DETACH Detaches the library with the specified number from the
current directory.
N
n
library
→
→DIAG Returns a vector that contains the major diagonal
elements of a matrix.
<%
CREATE
[[ matrix ]]
→ [ vector ]
diagonals
Name Description Access Inputs Outputs

HP 49g Specifications

General

Model	HP 49g
Type	Graphing Calculator
Display	131 x 64 pixels
Processor	Saturn
Memory	512 KB RAM, 2 MB ROM
Power Supply	3 x AAA batteries
Connectivity	RS-232
Programming	RPL