Reference Guide

Full Command and Function Reference 3-119
Example: Find the integral of sin(x) with respect to x, at the point where x=y.
Command: INT(SIN(X),X,Y)
Result: -COS(Y)
See also: INTVX, RISCH
INTEGER
Type: Command
Description: Displays a menu or list of CAS integer operations.
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, MAIN, MATHS, MATR, MODULAR,
POLYNOMIAL, REWRITE, TESTS, TRIGO
INTVX
Type: Function
Description: Finds the antiderivative of a function symbolically, with respect to the current default variable.
Access: Calculus, !Öor P CALC or !Ö DERIV . & INTEG L
Input: An expression.
Output: The antiderivative of the 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: Find the antiderivative of the following:
x
2
xln
Command: INTVX(X^2*LN(X))
Result: 1/3*X^3*LN(X)+(-1/9)*X^3
See also: IBP, RISCH, PREVAL
INV
Type: Analytic function
Description: Inverse (1/x) Analytic Function: Returns the reciprocal or the matrix inverse.
For a complex argument (x, y), the inverse is the complex number:
x
x
2
y
2
+
----------------
y–
x
2
y
2
+
----------------
,
 
 
 
Matrix arguments must be square (real or complex). The computed inverse matrix A
-1
satisfies A
× A
-1
= I
n
, where I
n
is the n × n identity matrix.
Access: Y
Flags: Numerical Results (–3)