HP 49G Pocket Manual page 30

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