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The sample program named ColMatrixAddSubtract01

The source code for this program is shown in its entirety in Listing 8 .

(The source code is also provided in Listing 14 near the end of the module for convenience.)

Listing 8 . Source code for the program named ColMatrixAddSubtract01.
public class ColMatrixAddSubtract01{ public static void main(String[]args){GM2D03.ColMatrix matrixA = new GM2D03.ColMatrix(3.14,-6.01);GM2D03.ColMatrix matrixB = new GM2D03.ColMatrix(-14.0,-12.2);GM2D03.ColMatrix matrixC = matrixA.add(matrixB);GM2D03.ColMatrix matrixD = matrixC.subtract(matrixA); GM2D03.ColMatrix matrixE = matrixD.subtract(matrixB);System.out.println(matrixC);System.out.println(matrixD); System.out.println(matrixE);}//end main }//end class ColMatrixAddSubtract01

The purpose of this program is to confirm the behavior of the new add and subtract methods of the GM2D03.ColMatrix class.

Source code for the add method of the GM2D03.ColMatrix class

Returning once more to a discussion of the updated GM2D03 library, the source code for this method is shown in Listing 9 . The method adds one ColMatrix object to another ColMatrix object, returning a ColMatrix object. As you should have learned from your studies of the Kjell tutorial, the order in which the two objects are added doesn'tmatter. The result is the same either way.

Listing 9 . Source code for the add method of the GM2D03.ColMatrix class.
public GM2D03.ColMatrix add(GM2D03.ColMatrix matrix){ return new GM2D03.ColMatrix(getData(0)+matrix.getData(0), getData(1)+matrix.getData(1));}//end add

The code in the method is straightforward and shouldn't require an explanation.

Source code for the subtract method of the GM2D03.ColMatrix class

Continuing with the discussion of the updated GM2D03 library, the source code for this method is shown in Listing 10 . This method subtracts one ColMatrix object from another ColMatrix object, returning a ColMatrix object. Also as you should have learned from the Kjell tutorial, in this case, the order of the operation does matter.The object that is received as an incoming parameter is subtracted from the object on which the method is called. Reversing the order of operations producesdifferent results.

Listing 10 . Source code for the subtract method of the GM2D03.ColMatrix class.
public GM2D03.ColMatrix subtract( GM2D03.ColMatrix matrix){return new GM2D03.ColMatrix( getData(0)-matrix.getData(0),getData(1)-matrix.getData(1)); }//end subtract

Once again, the code in the method is straightforward and shouldn't require an explanation.

Program output for program named ColMatrixAddSubtract01

Now, lets get back to the program named ColMatrixAddSubtract01 that is shown in Listing 8 . This program produces the output shown in Figure 3 .

Figure 3 . Screen output from the program named ColMatrixAddSubtract01.
-10.86,-18.21 -14.0,-12.2000000000000010.0,-1.7763568394002505E-15

Questions & Answers

anyone know any internet site where one can find nanotechnology papers?
Damian Reply
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
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Damian Reply
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s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
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are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
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That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
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Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
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s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
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types of nano material
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