Addtmod – HP 49g Graphing Calculator User Manual

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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

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