Flags: Exact mode must be set (flag –105 clear). Numeric mode must not be set (flag –3 clear).

Complex mode must be set (flag –103 set) if either input contains complex terms.

Example:

Obtain the resultant of the two polynomials

 

 

 

x3-px+qand 3x2-p.

 

 

Command:

RESULTANT(X^3-P*X+Q, 3*X^2-P)

 

 

Result:

27*Q^2-4*P^3

 

 

REVLIST

Command

 

 

Type:

 

 

Description:

Reverse List Command: Reverses the order of the elements in a list.

 

Access:

!°LIST PROCEDURES REVLIST ( °is the left-shift of the Nkey).

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

{ objn ... obj1 }

→

{ obj1 ... objn }

See also:

SORT

 

 

 

 

 

 

 

 

 

 

 

REWRITE

 

 

 

 

Type:

Command

 

 

Description:

Displays a menu or list of CAS operations that rewrite expressions.

 

Access:

Catalog, …µ

 

 

Flags:

If the CHOOSE boxes flag is clear (flag –117 clear), displays the operations as a numbered list. If

 

the flag is set, displays the operations as a menu of function keys.

 

See also:

ALGB, ARIT, CONSTANTS, DIFF, EXP&LN, INTEGER, MAIN, MATHS, MATR,

 

MODULAR, POLYNOMIAL, TESTS, TRIGO

 

 

RISCH

 

 

 

 

Type:

Function

 

 

Description:

Performs symbolic integration on a function using the Risch algorithm. RISCH is similar to the

 

INTVX command, except that it allows you to specify the variable of integration.

Access:

Calculus !ÖDERIV. & INTEG L.

 

 

Input:

Level 2/Argument 1: The function to integrate.

 

 

 

Level 1/Argument 2: The variable of integration.

 

 

Output:

The antiderivative of the function with respect to the variable.

 

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 the antiderivative of the following function, with respect to y:

 

 

y2 + 3y + 2

 

 

Command:

RISCH(Y^2-3*Y+2,Y)

 

 

Result:

1/3*Y^3-3*(1/2*Y^2)+2*Y

 

 

See also:

IBP, INT, INTVX

 

 

3-202 Full Command and Function Reference