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Answer 38

False. When an object's reference is passed as a parameter to the System.out.println method, the toString method belonging to the object is executed automatically.

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Answer 37

False. Type double is the default representation for literal real numbers in Java.

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Answer 36


This program instantiates objects from the following static top-level classes belonging to the class named GM2D01 :

  • GM2D01.ColMatrix
  • GM2D01.Line
  • GM2D01.Point
  • GM2D01.Vector

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Answer 35


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Answer 34

False. In 2D, the direction of a vector can be determined from the angle formed by the x-displacement and the line segment that represents the hypotenuseof a right triangle formed by the x and y displacements.

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Answer 33


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Answer 32

False. With regard to a vector, in 2D, the two values contained in a column matrix represent the displacements along a pair of orthogonal axes.

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Answer 31

False. Kjell tells us that the two (or three) real number values contained in the matrix to represent a vector (in 2D or 3D) specify a displacement of a specific distance from an arbitrary point in a specific direction.

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Answer 30


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Answer 29


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Answer 28


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Answer 27

False. Kjell tells us that we can represent a vector with two real numbers in a 2D system and with three real numbers in a 3D system.

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Answer 26

False. According to Kjell, "A vector does not have a position."

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Answer 25

True. According to Kjell, "A vector is a geometrical object that has two properties: length and direction." He also tells us, "A vector does not have a position."

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Answer 24

False. There will be many occasions when you, as a game programmer, will need to define the coordinate values for a point (or a set of points) that you have no intention of displaying on the screen. Instead, you will use thosepoints for various mathematical operations to produce something else that may or may not be displayed on the screen.

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Answer 23

False. Objects instantiated from the classes named Point2D.Double and Line2D.Double are intended primarily for rendering graphics on the screen and are not well suited for inclusion in mathematical operations. That is part of the rationale behind the development ofthe game-math library: separation of data objects that are suitable for mathematical operations from graphics objects .

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Answer 22

False. According to Kjell, the true line segment has no width, and therefore is not visible to the human eye. This is typically not the case with a linedrawn on the screen using an object of the Line2D.Double class.

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Answer 21

False. The default direction for increasing horizontal coordinate values in a Canvas object is from left to right across the screen.

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Answer 20


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Answer 19


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Answer 18

False. The class named Graphics2D is a subclass of (inherits from or is derived from) the class named Graphics .

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
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.
what is the actual application of fullerenes nowadays?
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.
what is the Synthesis, properties,and applications of carbon nano chemistry
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?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Game 2302 - mathematical applications for game development. OpenStax CNX. Jan 09, 2016 Download for free at https://legacy.cnx.org/content/col11450/1.33
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