HP 49g Graphing Calculator - Manual (Page 134)

CHINREM
Type: CoiTUTiand
Description: Solves a system of simultaneous polynomial
congruences in the ring Z[x].
Access: Arithmetic,
R1(MTR] polynomial
Input: Level 2/Argiunent 1: A vector of the first congruence
(expression and modulus).
Level 1/Argument 2: A vector of the second congruence
(expression and modulus).
Output: A vector of the solution congruence (expression and
modulus).
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example: Solve the followurg simultaneous congruences for the
polynomial u:
2
u=x +1 (moda:+2)
u = .x~~ ] (mod x+3)
Command: CHINREM{ [X^2 + l , X + 2 ] , [ X - l , X + 3 ] )
Result: [X"3+2*X''2 + 5 , - (X"2 + 5 * X + 6 ) ]
See also: ICHINREM
CURL
Type:
Description:
Access:
Inpnt:
Output:
Flags:
Fimction
Returns the curl of a three-dimensional vector fmiction.
Calculus,
0{M£) DERIV AND INTEG
Level 2/Argument 1: A three-dimensional vector function
of three variables.
Level 1/Argument 2: An array comprising the three
variables.
The curl of the vector fimction with respect to the
specified variables.
Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Computer Algebra Commands Page 14-11