Procedure.execute - Maple Programming Help

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Procedure.execute

execute a Maple procedure

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

Algebraic execute( ) throws MapleException

Algebraic execute( Expseq eArgs ) throws MapleException

Algebraic execute( Algebraic aArgs[] ) throws MapleException

Parameters

eArgs

-

expression sequence of arguments to the procedure

aArgs

-

array of Algebraic objects to be used as arguments to the procedure

Description

• 

The execute function executes the procedure represented by the Procedure object with the given arguments.

• 

The result of the procedure call is returned as an Algebraic object.

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 );

        Procedure p = (Procedure)engine.evaluate( "proc( ) return Pi; end proc:" );

        System.out.println( p.execute() );

        System.out.println( p.executehf() );

        p = (Procedure)engine.evaluate( "proc( x,y,z ) return (x+y)/z; end proc:" );

        Algebraic[] args = new Algebraic[3];

        args[0] = engine.newNumeric( 100 );

        args[1] = engine.newNumeric( 900 );

        args[2] = engine.newNumeric( 15 );

        System.out.println( p.execute( args ) );

        p = (Procedure)engine.evaluate( "proc( x ) return sin(Pi*x); end proc:" );

        Expseq e = engine.newExpseq( 1 );

        e.assign( 1, engine.newNumeric( 1000 ) );

        e = (Expseq)e.unique();

        System.out.println( p.execute( args ) );

    }

}

Executing this code produces the following output.

Pi

3.141592653589793

200/3

0

See Also

ExternalCalling/Java/MapleException

OpenMaple

OpenMaple/Java/Algebraic

OpenMaple/Java/API

OpenMaple/Java/Procedure

OpenMaple/Java/Procedure/executehf