assign - Maple Help
For the best experience, we recommend viewing online help using Google Chrome or Microsoft Edge.
Our website is currently undergoing maintenance, which may result in occasional errors while browsing. We apologize for any inconvenience this may cause and are working swiftly to restore full functionality. Thank you for your patience.

Online Help

All Products    Maple    MapleSim


Expseq.assign

assign a value into an element of the expression sequence

 

Calling Sequence

Parameters

Description

Examples

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 1..n where n is the length of the expression sequence.  The length can be obtained by calling numElements.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

    public static void main( String notused[] ) throws MapleException

    {

        String[] mapleArgs = { "java" };

        Engine engine = new Engine( mapleArgs, new EngineCallBacksDefault(), null, null );

        Expseq 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/iterator

OpenMaple/Java/Expseq/select

OpenMaple/Java/Indexable

 


Download Help Document