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Procedure.execute - execute a Maple procedure

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[];

    Engine engine;

    Procedure p;

    Algebraic args[];

    Expseq e;

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

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

        null, null );

    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:" );

    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:" );

    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


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