What is Drawing: Definition and 558 Discussions

Drawing is a form of visual art in which an artist uses instruments to mark paper or other two-dimensional surface. Drawing instruments include graphite pencils, pen and ink, various kinds of paints, inked brushes, colored pencils, crayons, charcoal, chalk, pastels, erasers, markers, styluses, and metals (such as silverpoint). Digital drawing is the act of using a computer to draw. Common methods of digital drawing include a stylus or finger on a touchscreen device, stylus- or finger-to-touchpad, or in some cases, a mouse. There are many digital art programs and devices.
A drawing instrument releases a small amount of material onto a surface, leaving a visible mark. The most common support for drawing is paper, although other materials, such as cardboard, wood, plastic, leather, canvas, and board, have been used. Temporary drawings may be made on a blackboard or whiteboard. Drawing has been a popular and fundamental means of public expression throughout human history. It is one of the simplest and most efficient means of communicating ideas. The wide availability of drawing instruments makes drawing one of the most common artistic activities.
In addition to its more artistic forms, drawing is frequently used in commercial illustration, animation, architecture, engineering, and technical drawing. A quick, freehand drawing, usually not intended as a finished work, is sometimes called a sketch. An artist who practices or works in technical drawing may be called a drafter, draftsman, or draughtsman.

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  1. G

    I Drawing a Continuous Symmetrical Grid on a Sphere's surface

    The motivation for this thread comes from physics, but I'm posting it in the maths section as the question is more of a mathematical one and less concerned with the underlying physics. In cosmology, they often talk about closed universes with positive curvature, or non-Euclidean elliptic...
  2. S

    Rearranging an equation and drawing a blank

    I need to rearrange this equation to solve for b but I can not get it worked out to where my units end up being correct. (a-b)=(F*b)/(A*E)
  3. beyondlight

    Program for drawing communication figures

    I am doing my thesis now and I will write it in Latex. But I need some kind of program to draw figures on communication symbols such as antennas, ADC converters, block diagrams with addition/subtraction/multiplication. Probably this can be done in Latex, if so i would need some guidance on...
  4. T

    Visualizing an engineering drawing

    Homework Statement I am trying to make a model of the attached drawing but am having trouble visualising the middle part of the drawings. I was wondering if someone could describe it to me Homework Equations - The Attempt at a Solution I think it involves two of something like this...
  5. A

    Drawing Graphs from Pictures

    How to draw the graph from the picture. I solved 50% my self like grade Xcut-off point but I do not understand the graph below
  6. chikou24i

    Drawing crystal structure software

    Hi, is there any software that I can use for drawing a crystal structure from atoms coordinates ?
  7. H

    Free Software for Drawing Cubes

    I'm drawing various fancy cubes. I'm using Octave, which is fine for generating the data but not so great on drawing cubes. (In case you're curious, I'm drawing projections of hypercubes.) Any help?
  8. O

    Searching for a Gasoline Engine Drawing: 3.5-4 Liters

    Hi all I'm looking for gasoline engine drawing with a displacement of 3.5-4 liters. Any suggestions where I could find one? Oleg
  9. Cosmophile

    Drawing a parabola with different labels

    Hey, all. I'm wanting to type up a few ways to solve a neat Kleppner & Kolenkow problem, and I'd like to put a diagram I've drawn in. Here is what I'd like to insert...
  10. H

    I am ready to make a mechanical drawing but have issues

    One question is, I need a rod that both has grooved bearing tightly fit and a linear bearing on the same rod with no slop. Is this possible? What is a "press fit" tolerance? If I have a 0.5 hole, what size rod will be press fit? What size will locate without pressing? Boy I wish I had an...
  11. Andrea M.

    Drawing Feynman diagrams with feynarts

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  12. O

    What is the relationship between x-t and v-t graph?

    I'm suppose to draw a v-t and a-t graph from a given x-t graph. Here is the x-t graph and my attemps on the other two graphs from the x-t one. Howeverr 1. My teacher said that these graphs are discontinuous? Because I often see in littetaure that they drag "a vertical line" whenever...
  13. C

    Help reading isometric drawing

    I'm confused about "R34 2 PL" means. I'm guessing the radius of the round is 2mm and the curve is a quarter of an ellipse like so: Am I right?
  14. L

    Interpreting wire type specifications on engineering drawings

    I have an electrical drawing which specifies a wired connection as 3# 10+ 3# 12v- Teck symmetrical. What do all these numbers mean?
  15. TheMathNoob

    Probability problem -- Drawing cards with different colors on their 2 sides

    Homework Statement A box contains three cards. One card is red on both sides, one card is green on both sides, and one card is red on one side and green on the other. One card is selected from the box at random, and the color on one side is observed. If this side is green, what is the...
  16. W

    Combinatronics, drawing exactly 1 ace from a card deck

    Homework Statement In a 52 card deck, if you draw 5 cards find the probability of drawing exactly one ace. Homework Equations (n k) = n!/k!(n-k)! P(A) = |A|/|S| The Attempt at a Solution So I took the logic of a different example we had that stated it like this - If we have 5 options but...
  17. J

    Software for drawing group lattice diagrams?

    Hi, I was wondering if there is code already available to draw group lattice diagrams if I already know what the subgroup structure of the group and its subgroups are. For example, it's easy to determine the subgroup lattice for cyclic groups simply using divisors via Lagrange's Theorem...
  18. J

    Drawing 3D curved arrows around an axis

    Hi, I'm working on a project to illustrate the isometries of a tetrahedron and would like to be able to add a curved arrow around the black axis of rotation in the Manipulate display to indicate which way the solid is rotating depending if the angle is negative or positive. Here's a display of...
  19. B

    Drawing Curves with Conic Sections

    I'd like of draw any curve using combination of line circle, elipse, parabola, hyperbola and straight. Of course several curves can't be designed with 100% of precision using just conic curves, but, can to be approximated. Acttualy, I don't want to reproduce a curve already designed but yes...
  20. E

    Moon is drawing away from Earth

    Hi all It's a well known fact that the moon is drawing away from Earth by 3.82 ± 0.07 cm/year. I was googling a lot to find the exact distance between Earth - moon that this data was measured. A plain number or a link will be much appreciated. Thanks in advance Elistein
  21. O

    Do Math Majors Need Drawing Skills? - An Exploration of Spatial IQ

    OK, ever since I was young I was well aware of my inability to draw. I had a friend who really could draw, and he did it so effortlessly. When I tried to draw, I had to erase erase and erase! I am asking this because I am a math major, and I would like to know if drawing is a talent that...
  22. L

    Free body diagram drawing for a two force members on machine

    Homework Statement When a force of 2 lb is applied to the handles of the brad squeezer, it pulls in the smooth rod AB. Determine the force P exerted on each of the smooth brads at C and D Homework Equations ##\sum F_x=0## ##\sum M=0## ##\sum F_y=0## The Attempt at a Solution I drew a free...
  23. Y

    MHB Drawing Elliptic Abacus with pgfplots and tikz

    Could you help me please With which function can we draw elliptic abacus in Statistic? I want to draw this function with pgfplots, tikz thank you
  24. F

    Figure drawing software for textbooks and ebooks (education)

    Hi, I'm looking for a great software for drawing illustrations in physics (Graphs, geometry, box drawings, integral and area 2d Graphs) and perhaps some trigonometry (triangles, Graphs, unit circles with angles/degree). I'm on a windows computer and the purpose is for making textbooks and ebooks?
  25. Y

    Drawing the Zeeman Spectrum in Magnesium

    Homework Statement A zeeman experience is made in the transition 3s4s ## ^3S_1## -> 3s3p ##^3P_2## in Magnesium with a magnetic field of 2Teslas (20 000 Gauss). With no magnetic field the emission occurs in 518.360nm. a) Draw the spectrum of what you hoped you observe when you're watching the...
  26. S

    How to know which surface represents equation Q (x,y,z) =0?

    The equation. Q(x, y,z) = -5/2:X2 - y2 + 4z2 + 7xy - 2xz - 2yz. Find its axis and draw its intersection with the plane x + y + z = 0 .
  27. E

    Drawing Streamlines

    How can draw stream line?
  28. Chemer

    Drawing distribution curves for orbitals

    Hi, can anyone please guide me how to draw the distribution curves for radial wave function of an orbital? Please explain stepwise and in easy way. Thanks.
  29. Philosophaie

    Eccentric & Mean Anomaly: Difference & Drawing

    What is the difference between the drawing of the Eccentric Anomaly and the Mean Anomaly. http://www.philosophaie.com/EA.png One has a circle radius "a" inscribed an ellipse with a focus "F". The True Anomaly makes "f" makes an angle to point "P" then a perpendicular is drawn to a point on...
  30. K

    Drawing a T-s Diagram

    Homework Statement . Can anybody help me to draw a T-s diagram Homework EquationsThe Attempt at a Solution Ive found out all the temperatures and entropy's but the videos I have watched don't help [/B] [/B]
  31. A

    Drawing up a liquid by forward motion of a tanker

    Homework Statement We are in a planet where the gravitational acceleration is 1 ms-2. Tankers fly over the surface of a liquid ammonia lake (at 239K) at a height of 40m. A special, insulated, frictionless tube is lowered into the ammonia 1m below the surface. We want to draw up ammonia through...
  32. K

    Engineering Drawing the DC Model of a Circuit

    Homework Statement [Picture of Problem](http://i.imgur.com/7q4yj8O.png) Homework Equations [/B] * It is dealing with drawing the DC model of a circuit * Now i know when drawing a DC Model, all capacitors are open (or ground) and AC sources are grounded as well. * In this specific problem, i...
  33. J

    Drawing and meshing involute bevel gears in CAD

    Hello, I urgently need to be able to draw a set of bevel gears for 3d printing. The gears I am currently drawing intersect that is their teeth are penetrating each other when the gear turns. Currently using http://www.daycounter.com/Calculators/Bevel-Gear-Calculator.phtml to find the numbers...
  34. Lenus

    Drawing three cards - combined probability

    In a game of Open Face Chinese poker, I encounter this problem quite often. One draws three cards at a time and one of these cards must be discarded, so two of three drawn cards can be used. A typical problem and question in this game would be: What is the probability of drawing one spade AND...
  35. G

    Draw a Hexagon with Parallel Lines: 6-Sided Shape Drawing Homework

    Homework Statement The problem involves drawing a particular set of lines and analysing anything of interest. The steps are as follows: : Begin with a hexagon with standard notation. : Draw a line (T) that passes through point B and which is parallel to AC. : Produce the lines AD and EC...
  36. S

    Would you -- drawing of wood blocks and a ruler to measure a lens

    < Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown. Also, thread title edited to make it more descriptive. > The question is asking me to draw a diagram to show how, in the laboratory you would use two rectangular blocks of wood and a metre rule...
  37. ShayanJ

    LaTeX Can You Create Complex Drawings in LaTeX Using Tikz?

    Since LaTeX is very powerful, I'm curious whether its possible to do things like the below samples in it. Is it? Thanks
  38. M

    Resources for Practicing Drawing Free Body Diagrams

    I am absolutely clueless when it comes to drawing free body diagrams. I think I understand the concepts but as soon as I see an unfamiliar system I have no idea what goes where. Are there any resourcess that provide a large number of practice problems (with solutions) for drawing free body...
  39. evinda

    MHB Drawing a 2-3 Tree & Inserting/Deleting Keys

    Hello! (Wave) Assume that at the nodes of a 2-3 tree, the following keys are saved (in an increasing order): $3,6,9,15,18,21,24, 27, 30, 33, 36$. It is also given that the root is a 2-node that contains the number $12$.Draw the tree. PS: It is not required to make so many insertions as the...
  40. M

    Help Drawing Free Body Diagrams?

    Homework Statement At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails, weigh 10kg and 20kg, respectively, and are both the same size. If the...
  41. F

    Drawing a Circuit from Voltage-Time Graph

    Homework Statement The attached graph shows the relationship between time and voltage for three resistors. A capacitor is discharging current through three "separate" resistors. How resistors might be positioned in a circuit to give rise to the graphs.Homework Equations V = IR CR = $$\uptau$$...
  42. D

    Probability of drawing duplicates (warning long post)

    0. Introduction This is not actually homework. This is from real-life work in life science. I have tried to break it down into basic maths, though it will require an extension once I figure out the basics. The following part here will serve as an introduction to the subject. Feel free to skip...
  43. Superposed_Cat

    Efficently drawing 100 000 models in 3D without lag

    Hi all, I'm currently working on a 3D game and am in the city development phase (its done procedurally). The issue is is that once I get to 22 000 buildings (80 000-100 000 models roughly) it causes a drop to 5fps(frames per second) (even with collision detection off). I'm using instancing to...
  44. R

    Solve Mystery: Unknown Drawing Symbol 3.0

    Hello, Trying to set up some production checks and encountered a symbol I have never seen before. I googled machine stock symbols and found something along the lines of what I need to know but could not figure out what the 3.0 besides the squiggly line means. I have attached a PDF with the...
  45. M

    Drawing a Graph using Integral Equation

    Homework Statement Ok guys, its been a while since I have done this one so I don't even know where to begin. Here is the problem I have to complete: The power (in watts) from an engine is represented by the equation below, where t is the time in seconds. P = 30t^2.2 + 3t 1) Draw a table...
  46. evinda

    MHB Drawing Binary Tree: Exploring Pre-Order & In-Order Traversal

    Hi! (Smile) I am looking at the following exercise: It is given a binary tree with 8 nodes and keys 2,4,6,8,10,12,14,16.The in-order tree traversal gives this order: 2,4,6,8,10,12,14,16. The pre-order traversal gives the order: 10,8,2,6,4,16,14,12. Draw the tree. Explain how you drawed it...
  47. evinda

    MHB Drawing Trees Through MATHHELPBOARDS: Pre-Order, In-Order, Post-Order

    Hello! (Wave) I want to draw trees, that traverse "MATHHELPBOARDS" in: pre-order in-order post-order That's what I have tried: pre-order in-order post-order Could you tell me if it is right or if I have done something wrong? (Thinking)
  48. P

    Any good softwares for drawing optical schematics?

    Hi all, Are there any good softwares for drawings schematics like this? I need to make and insert such images in my thesis report.
  49. M

    Explaining the mechanism of a reaction and drawing its Energy diagram

    Homework Statement This was a lab. I started with Maleic Acid. We performed a temporary corbonication to see whether or not the single bond would rotate to create fumeric acid, maleic acid or both. The question that I have to answer that I cannot answer is: Explain the mechanism of the...
  50. A

    MHB Convolution - calculation and drawing

    Hi! I need your help with convolution. I am having problem understanding it. I don't understand the example, it shows the calculation and the drawing. Could you please explain the solution to me - why the ranges of t are taken that way and how does the drawing represent the answer?I'll show...
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