HP 49G Pocket Manual page 41

Name
IABCUV Returns a solution in integers u and v of au + bv = c ,
where a , b , and c are integers.
Returns the n th Bernoulli number for a given integer.*
IBERNOULLI
IBP Performs integration by parts on a function.
ICHINREM Solves a system of two congruences in integers using the
Chinese Remainder theorem.
IDIV2 For two integers, a and b , returns the integer part of a / b ,
and the remainder, r .
IDN Returns an identity matrix.
IEGCD Given two integers x and y , returns three integers, a , b ,
and c , such that: ax + by = c.
IF Starts IF ... THEN ... END and IF ... THEN ... ELSE ...
END conditional structures.
IFERR Starts IFERR ... THEN ... END and IFERR ... THEN ...
ELSE ... END error trapping structures.
IFFT Computes the one- or two-dimensional inverse discrete
Fourier transform of an array.
IFT Executes obj if T/F is nonzero; discards obj if T/F is zero.
Description Access Inputs
INTEGER
<!
N
&
DERIV
<$
INTEG
[ vector
INTEGER
<!
<! INTEGER
< %
CREATE
INTEGER
<!
BRANCH
<N
<N ERROR
IFERR
FFT
< P
BRANCH
<N
* = function
Outputs
→ z
n n n
z
1 2 3
1 2
→ z
n
1
1
' → ' symb
' symb ' ' symb
' ' symb
1 2
3
] → [ vector
] [ vector
]
1 2
3
→ n
n n
n
1 2
3 4
n → [[ R-matrix
identity
→ n
n n
n n
1 2
3 4 5
→ [ array ]
[ array ]
1
2
T/F obj →
'
4
]]