Addtmod – HP 49g Graphing Calculator User Manual
Page 130
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Example:
Simplify the following expression:
a rc cos + arc cos (x)
Command:
A C 0 S 2 S ( A C O S ( 2 / 3 ) + A C O S ( X ) )
Result:
n / 2 - A S I N { 2 / 3 ) + T t / 2 - A S I N ( X )
See also:
ASIN2C
ASIN2T
ATAN2S
ADDTMOD
Type:
Fimction
Description:
Adds two expressions or values, modulo the current
modulus.
Access:
Arithmetic, 0(ARjTH)
MODULO
Input:
Level 2/Argmnent 1: The first expression.
Level 1/Argument 2: The second expression.
Output:
The sum of the two expressions, modulo the current
modulus.
Flags:
Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example:
Express the result of the following addition in modulo 7.
(0+3a:+6)+(9a-+3)
Note: Use the CAS modes input fonn to set the modulo
to 7
Command:
ADDTMOD ( X - ^ 2 + 3 * X + 6 , 9 * X + 3 )
Result:
X ' ' 2 - 2 * X + 2
Computer Algebra Commands
Page 14-7