Graphing calculator.

Alphabetical command list
The following pages contain the commands in alphabetical order. See "Computer algebra command
categories" on page 4-5 to view the commands in the order that they appear on the menus. Chapters 11 to 16
in the User's Guide provide examples using many of these commands.

## ABCUV

Type:
Command
Description:
Returns a solution in polynomials u and v of au+bv =c where a and b are polynomials in the
current CAS independent variable, and c is a value.
Arithmetic, !Þ
Access:
Input:
Level 3/Argument 1: The polynomial corresponding to a.
Level 2/Argument 2: The polynomial corresponding to b.
Level 1/Argument 3: The value corresponding to c.
Output:
Level 2/Item 1: The solution corresponding to u.
Level 1/Item 2: The solution corresponding to v.
Flags:
Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Radians mode must be set (flag –17 set).
Example:
Find a solution in polynomials u and v for the following equation:
2
x
+ +
x
Command:
ABCUV(X^2+X+1,X^2+4,13)
Result:
{-(X+3),X+4}
IABCUV, EGCD

### ACOS2S

Type:
Command
Description:
Transforms an expression by replacing acos(x) in subexpressions with /2–asin(x).
Trigonometry, ...Ñ
Access:
Input:
The expression to transform.
Output:
The transformed expression.
Flags:
Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Radians mode must be set (flag –17 set).
Example:
Simplify the following expression:
⎛ ⎞
arc
cos
-- - ⎝ ⎠
Command:
ACOS2S(ACOS(2/3)+ACOS(X))
Result:
/2-ASIN(2/3)+ /2-ASIN(X)
ASIN2C, ASIN2T, ATAN2S

Type:
Function
Description:
Adds two expressions or values, modulo the current modulus.
4-12 Computer Algebra Commands
POLYNOMIAL
2
1
u
+
x
+
4
=
13
V
2
+
arc
cos
x
3