Drawing Definition and 559 Threads

Hello everyone. I just created a YouTube video on how to draw 4, 5, 6, and 7 dimensional objects. Yes, contrary to popular opinion, this is possible. The four minute video is available at http://youtu.be/Q_B5GpsbSQw Please let me know what you think. I hope you like it. Thanks...

Homework Statement Assume the system is massless. The Attempt at a Solution Here is my quick attempt at drawing a free body diagram for this system: What I am not sure about is the direction of the force at F. Should the force be A or B?

Homework Statement The y = f(x) is the original graph. The question asks me to draw the y = 1/f(x) of that graph. What I did was just use the same x coordinates and then take the y coordinates and just do 1/y coordinate for each y coordinate. Is this the correct way to do it? Also, the red...

Homework Statement There are 3 big mistakes in this drawing and I would really appreciate if anyone could help me find out exactly what those are. Thank you. Homework Equations Since I am new to engineering drawings, I can only make assumptions and would really appreciate if I am...

Hi all, I was just wondering if anybody knew what the attached assembly is and how it works- any information on where to find a CAD model for one would be greatly appreciated, too! Thanks guys

Do anyone have any software by which i can make a vector diagram from a group of points.you can think it like..suppose you have x & y component of a vector at a point..you can draw that easily but i will have to draw a vector diagram for 100 or more points arranged on a surface...i will give the...

The graph e^x = x^2: I originally drew it like this: But it's actually: If I come across more complex graphs in the future, is there a way to know which one is steeper than the other, to draw it accurately ?

A bucket elevator for conveying solid material (cement mill feed of 30mm~2.5mm) draws an abnormally high current when loaded. some buckets where discovered deformed. The deformed buckets where changed, but the elevator still took high kilowatt on start up. Please what could be the cause.

Hello, I am writing my MSc dissertation, and I want to draw some 3-phase circuits with different cabling configurations (6-wire, 4-wire etc). I need an easy software that can draw the schematics nicely, like the ones found in books. I do not need interactive software (like NI circuit design)...

Every once in awhile, I'd like to draw a coordinate figure or something else related to astronomy. I can make a fair cut at it using Word, but something like the attachment would really be good. That goes for the equations to which I believe were probably done with LaTex. For graphics...

This is something that most artists know about, when they draw or look at something for long periods of time they will not see the mistakes, but when they take a mirror and look at the reflection of the drawing they see all the faults. Also, leaving a drawing/painting for a day will let you see...

I'm doing some 2D pencil diagrams (CUD - computer-unaided design). So I've got a square in perspective (2 point perspective but 1 point perspective is good enough). Now I want to draw an ellipse within it, so that the ellipse is properly tangential to all four midpoints of the square. I have...

Hi, I'm studying for a course in semiconductor devices, involving pn-diodes, schottky-diodes and mosfet transistors. Just wondering if there's any good online resource that demonstrates specifically how to draw energy band diagrams for the various devices in various situations (applied...

Homework Statement http://img444.imageshack.us/img444/3062/firing.jpg (in Hebrew it says "circuit to regulate firing angle") 1) Note the main difference between SCR and TRIAC. 2) The following is a circuit to regulate the load RL, regulated by SCR. The SCR is fired at an angle of 90 degrees...

Homework Statement I need to draw an orthogonal RHS of an object I have attached as a pdf file with the message for an assignment. My problem is I do not know what the RHS of the drawing would look like. I know how to use autocad to do drawings but I'm stuck when I need to envisage the...

Hey guys can anybody help me finding a software for video tutorial? I will me more thankful if anybody suggest me drawing software too...

http://i46.tinypic.com/1zg877r.png So I'm trying to draw a "½”-13 UNC x 1-1/2” long round head cap screw with hex nut and plain flat washer" and this is what I came up with. How do I draw it with the hex nut and the plain flat washer? What does it look like?

I've been asked to give a workshop at my local youth center about a certain card game (MtG for those that know it). The last time I did this was a few years ago and I lost some of my notes in the mean time. I always presented the attendants with a little spreadsheet with a variety of useful...

Homework Statement i have an engineering drawing and i try to do it but i couldn't understand , can some one help me with this drawing: http://im29.gulfup.com/2012-04-14/1334417741112.png Homework Equations The Attempt at a Solution

I have to draw cosine waves in relation to pattern formation for mathematical biology, for example, I have to plot things similar to these on the x-axis; cos( 2*pi*x / √5 ) from x= 0 to √5 cos( 3*pi*x / 2 √5 ) from x= 0 to 2√5 cos( 3*pi*x / 2 √(5/6) ) from x=0 to 2√5 And with the y-axis; cos(...

I have a question about one of the methods used to draw the alpha helix structures in proteins. This is a typical drawing from Wikipedia of a small protein transcriptional activator Myb; http://en.wikipedia.org/wiki/File:Protein_MYB_PDB_1guu.png Now that drawing looks typical of any...

Homework Statement We draw 5 cards out of a normal deck of 52 cards. No replacements. How many combinations have exactly one Jack, one Queen, one King? Homework Equations The Attempt at a Solution The solution = 49,920 My attempts: I keep getting 99,840. So 4C1 Jack...

I am a 3rd year civil engineering student and this is the first time i come across this problem and i am struggling with it. My problem here is that i don't know how to draw a shear force and bending moment diagram for a trapezoidal load on a beam with fixed supports at both ends. I know...

Hi. I'm looking for a drawing tool which may help me draw simple figures with vectors and angles. I've tried many but they're so complicated... e.g. Photoshop, Power Point, Edraw, and some others. The ideal one would be one which is designed for this... I mean a program that has a tool, for...

Homework Statement How do you tell if a spherical refracting surface is convex or concave before drawing a ray diagram? (given the indices of refraction, center of curvature, s, and s') Homework Equations i read this: "A convex surface is one that bulges out in the middle toward the...

Homework Statement I have 2 graphs in latex, side by side, that were attached using: \includegraphics I want to draw an arrow going from the middle of the first graph to the middle of the second graph. Homework Equations The Attempt at a Solution I tried using the tikz package...

I'm trying to draw the side-view and I'm having a bit of trouble. Is what I drew correct, or is there some kind of special representation for threaded holes?

Homework Statement Draw flow lines of f(x+iy)=x^2-y^2+2ixy Homework Equations n/a The Attempt at a Solution I know the flow is irrotational and sourceless by Cauchy Theorem but I don't know how to draw the flow lines... I'm thinking I might have to parameterize the equation and...

Homework Statement Graphs A and B are entries to a NOR gate with 2 inputs. Draw the output C. Graphs X and are entries to a XOR gate. Draw the output Z. Homework Equations The Attempt at a Solution

Here is what I've done so far How do I draw the Phase portrait for this system? Have I done everything correct so far? Thanks

Hi guys, I am looking for a simple 3D drawing program, where I could draw a bunch of balls of different colors and maybe some bulky arrows. If I could make a small movie (or a GIF) by making the balls move, that would be a nice extra. What would be the simplest solution? Mathematica...

How can I draw a rectangle oriented clockwise on the complex plane with vertices on (0,0), (0,4), (10,4), and (10,0)? I am guessing the tikz package needs to be used but I am not skilled in making pictures.

Can anyone recomment any good linux software for produce "physics type" diagrams that would be of acceptable quality for putting into reports? When I say "physics type", I mean we're basically talking about straight and curved lines, vectors (arrows), angles and so on... of course I want to be...

I had a tutorial today and my tutor said these questions are very trivial so we can simply look at it at home. But after going home, I found that I don't know how to do Q 35. I know that p<3 is responsible for the big sphere with r=3. But I don't know why the other part is responsible for...

The question is to draw the shear and moment diagram for this frame structure. I think I can do the diagram part alright, but I'm confused as to how I can draw the FBDs for this structure. What I'm thinking is to split into two members, AB and BC. For member AB, I know that there's...

I'm looking for some software I can use to draw reasonable technical diagrams- the sort of diagrams you'd find in online lecture notes, or in maths/engineering textbooks, i.e. simple shapes, arrows, curves etc. It's hard to describe what I mean, hence why I've came after nothing on Google...

1. Homework Statement Sin(sec^-1(sqrt(x^2+16)/4)) 2. Homework Equations 3. The Attempt at a Solution I did the math and ended up getting x^2-1 as the opposite, but the answers on the back of the book say other wise.

Homework Statement Cos(Tan^-1(x)) Homework Equations The Attempt at a Solution Dont know how drawing a right triangle would do anything, don't know what to plug in.

I have a curve of this form (as attached) drawn in excel. Now, the point P upto which the red curve is (almost) a straight line is called the proportional limit. OK. Now, I need to find the proportional limit as hown by the point p on the curve. It is given in literature that; As a...

Homework Statement Draw the lattice lines for the following transformation. x=se^t y=se^-t The Attempt at a Solution Trying to draw this transformation. So first thing I did was let t be constant. I then used substitution to show that x=ye^{2c}. This is the set of all lines (as C is...

Homework Statement Give an example of the matrix: 3x3 upper triangular symmetric matrix Homework Equations The Attempt at a Solution I know what an upper triangular matrix and what a symmetric matrix looks like. But what happens when they put it together? Is the symmetry in the...

Homework Statement I need to draw the auxiliary view of this object with a slope. In the examples I've seen, most slopes are situated on the right side of the object, so when you unfold your auxiliary plane from the "glass box", you draw your auxiliary view on the upper right side of the...

Anyone can recommend me which software is the best for 3D drawing for piping?

Drawing 2D Velocity Structures? Homework Statement I need some help in drawing structures such as velocity of the plane relative to the air, velocity of the plane relative to the ground, and velocity of the air relative to the ground. Please give me some tips on how to drawing these, thanks!

Homework Statement (http://i.imgur.com/5OWEi.jpg) I have way to many unknowns to start the process of solving equations. Homework Equations ƩFx = 0 ƩFy = W The Attempt at a Solution I was given the answer of one force being .885W and the other is .201W. The problem is a...

I have an underwater microphone "hydrophone" that should run on 12vDC and 45mA. Except that when I run it off of my power supply, it is wanting to draw around 3Amps of current at the 12volts. The three power wires are (+, -, and shield) and are correspondingly connected to the power supply's...

Homework Statement A meteorite found in Antarctica contains a trace of a mysterious element. Its spectral lines are all multiples of a frequency f0. The multiples are: 1, 2, 3, 5, 6, 8, 10, 11, 13, 16, 18, 19, 21, 26, 29, 31, 32, 34, 42, 47, 50, 52, 53 . The frequencies in bold have...

I drew up a quick picture in paint of a wheel under acceleration. This is the driving wheel of a RWD car. Am I missing any forces/drawn in the wrong direction? Thanks.

Homework Statement how would I draw the graph f(x) = ln|3x-6| Homework Equations NONE The Attempt at a Solution So I know that the graph ln(3x-6) would be a transformation of ln(x) 6 units to the right and the stretch by scale factor (1/3) along the x-axis (i.e: divide all x...

Homework Statement Find impedance and Io. draw phasor diagram for rlc circuit V = 120cos(2π525t) where R = 10Ω, C = 1μF, L = 100mH, Vo = 120V Homework Equations Z = √(R2 + (ωL-1/(ωC))^2) = √(10^2 + (2π * 525 Hz * 100 mH - 1/(2π * 525 Hz * 1 μF ))^2) = 28.525Ω Io = Vo/Z = 120 V /...