HP 49g

31
DOERR
* = function
DIAG→ Takes an array and a dimension and returns a matrix
whose major diagonal is the elements of the array.
< %
CREATE
[ array ]
diagonals
{ dim }
→ [[ matrix ]]
DIFF Displays a menu of calculus commands. N
DIFFEQ Sets the plot type to DIFFEQ. N
DISP Displays obj in the n th display line. <N OUT
obj n
→
DIV Returns the divergence of a vector function. <$ DERIV
AND INTEG
[[ array
1
]] [[ array
2
]]
→ ‘ symb
1
’
DIV2 Performs euclidean division on two expressions. Step-by-
step mode is available with this command.
<!
POLYNOMIAL
‘ symb
1
’ ‘ symb
2
’
→ ‘ symb
3
’
DIV2MOD Performs euclidean division on two expressions modulo
the current modulus.
<! MODULO
‘ symb
1
’ ‘ symb
2
’
→ ‘ symb
3
’
DIVIS Returns a list of the divisors of a polynomial or an integer. <!
‘ symb
1
’
→ { list
1
}
DIVMOD Divides two expressions modulo the current modulus.*
<! MODULO
‘ symb
1
’ z
→ ‘ symb
2
’
DIVPC Returns a Taylor polynomial for the quotient of two
expressions.
<$ LIMITS &
SERIES
‘ symb
1
’ ‘ symb
2
’ z
→ ‘ symb
3
’
DO Starts DO … UNTIL … END indefinite loop structure. <N BRANCH
DOERR Executes a “user-specified” error, causing a program to
behave exactly as if a normal error occurred.
<N ERROR
n
error
→
Name Description Access Inputs Outputs