Maple Professional
Maple Academic
Maple Student Edition
Maple Personal Edition
Maple Player
Maple Player for iPad
MapleSim Professional
MapleSim Academic
Maple T.A. - Testing & Assessment
Maple T.A. MAA Placement Test Suite
Möbius - Online Courseware
Machine Design / Industrial Automation
Aerospace
Vehicle Engineering
Robotics
Power Industries
System Simulation and Analysis
Model development for HIL
Plant Modeling for Control Design
Robotics/Motion Control/Mechatronics
Other Application Areas
Mathematics Education
Engineering Education
High Schools & Two-Year Colleges
Testing & Assessment
Students
Financial Modeling
Operations Research
High Performance Computing
Physics
Live Webinars
Recorded Webinars
Upcoming Events
MaplePrimes
Maplesoft Blog
Maplesoft Membership
Maple Ambassador Program
MapleCloud
Technical Whitepapers
E-Mail Newsletters
Maple Books
Math Matters
Application Center
MapleSim Model Gallery
User Case Studies
Exploring Engineering Fundamentals
Teaching Concepts with Maple
Maplesoft Welcome Center
Teacher Resource Center
Student Help Center
Expseq.assign - assign a value into an element of the expression sequence
Calling Sequence
void assign( int i, Algebraic val ) throws MapleException
Parameters
i
-
index of the entry to assign
val
value to assign into the expression sequence
Description
The assign function assigns the Algebraic object val into the element of the Expseq indexed by i.
The assign function can only be called on an Expseq, which is not a unique representation. For more information, see unique.
Valid values of i are where is the length of the expression sequence. The length can be obtained by calling length.
Examples
import com.maplesoft.openmaple.*;
import com.maplesoft.externalcall.MapleException;
class Example
{
public static void main( String notused[] ) throws MapleException
String mapleArgs[];
Engine engine;
Expseq e;
mapleArgs = new String[1];
mapleArgs[0] = "java";
engine = new Engine( mapleArgs, new EngineCallBacksDefault(),
null, null );
e = (Expseq)engine.evaluate( "1,2,3:" );
try
e.assign( 1, engine.newNumeric( 2.2 ) );
}
catch ( MapleException me )
System.out.println( me.getMessage() );
e = engine.newExpseq( 3 );
e.assign( 1, engine.newNumeric( 1 ) );
e.assign( 2, engine.newNumeric( 2 ) );
e.assign( 3, engine.newNumeric( 3 ) );
e = (Expseq)e.unique();
System.out.println( e );
Executing this code produces the following output.
Error, expression sequences from Maple cannot be modified in-place
[1, 2, 3]
See Also
ExternalCalling/Java/MapleException, OpenMaple, OpenMaple/Java/Algebraic, OpenMaple/Java/API, OpenMaple/Java/Expseq, OpenMaple/Java/Expseq/length, OpenMaple/Java/Expseq/select
Download Help Document
