RTable.copy - Maple Programming Help

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RTable.copy

create and return a copy of the current RTable

 Calling Sequence RTable copy( ) throws MapleException

Description

 • The copy function creates and returns a new RTable that contains the same data as the current RTable.
 • As RTables do not have unique representations, the returned copy is a different Maple object from the original.  Changes to the copy do not affect the original.

Examples

 import com.maplesoft.openmaple.*; import com.maplesoft.externalcall.MapleException; class Example { public static void main( String notused[] ) throws MapleException { String mapleArgs[]; Engine engine; RTable a, b; int index[]; Numeric one; mapleArgs = new String[1]; mapleArgs[0] = "java"; engine = new Engine( mapleArgs, new EngineCallBacksDefault(), null, null ); a = (RTable)engine.evaluate( "Array( 1..3, 1..3, (i,j)->(i*j)+1 ):" ); b = a.copy(); index = new int[3]; one = engine.newNumeric( 1 ); index[0] = 1; index[1] = 1; ((AlgebraicRTable)b).assign( index, one ); index[0] = 2; index[1] = 2; ((AlgebraicRTable)b).assign( index, one ); index[0] = 3; index[1] = 3; ((AlgebraicRTable)b).assign( index, one ); System.out.println( a ); System.out.println( b ); } }

Executing this code produces the following output.

 Array(1..3, 1..3, [[2,3,4],[3,5,7],[4,7,10]], datatype = anything, storage = rectangular, order = Fortran_order) Array(1..3, 1..3, [[1,3,4],[3,1,7],[4,7,1]], datatype = anything, storage = rectangular, order = Fortran_order)

 See Also