Plot Definition and 717 Threads

This is a plot for understanding the stability of flows through the orr sommerfeld equation. However, I find it really hard to understand. The plot by itself is a little weird, what is it trying to convey?

Dear group, I am new with MATLAB and trying to plot these figure out as the file request. I tried but could not get the same plot as the file has. I hope anyone can help. Here is the code which i am working on. Thank you. fc = 553e6; w = 0:2*pi*fc*1e-2:100*2*pi*fc; pau = 0.33; tau =...

Homework Statement I have ##C= NK_B (\frac{\epsilon}{K_B T})^{2}e^{\frac{\epsilon}{K_B T}}\frac{1}{(e^{\frac{\epsilon}{K_BT}}+1)^2} ## and need to sketch ##C## vs. ##T## Homework Equations See above The Attempt at a Solution I have ##C= NK_B (\frac{\epsilon}{K_B...

I want to make a 2D plot of points with different x, y coordinates and have colors depending on a separate variable. I have make column vectors for x and y coordinates and another column containing 1 or -1. I would like to represent the points with 1 as red and -1 as blue points. I have codes as...

Homework Statement Link: http://i.imgur.com/JSm3Tqt.png Homework Equations ##\omega=2\pi t## Fourier: ## Y(f)=\int ^{\infty}_{-\infty}y(t)\mathrm{exp}(-j\omega t)dt## Linearity Property: ##ay_1(t)+by_2(t)=aY_1(f)+bY_2(f)##, where a and b are constants Scaling Property...

Hello to all. I've been trying to plot some graphs on Mathematica but I have faced some troubles so far. I am working on this paper by Lattimer on binary systems: https://arxiv.org/abs/astro-ph/0002203 I am trying to reproduce Figure 11 but something seems to go wrong. Here's what I have...

Homework Statement We were given five samples of nichrome wire, each with a different diameter but the same length. A micrometer was used to measure the diameters. We then measured and recorded the electrical resistance, R in Ohms of each nichrome sample with a DMM. I will try to summarize all...

The wave function is an exponential function, if I plot the real part of it, I don't get a wave graph like sine or cosine function, Why the wave function is not represented by a trigonometric ratio instead. Also, the wave function cannot be plotted since it is imaginary, why is it imaginary? Thanks

Hello! I have a question regarding the effect of the accelerated expansion of the universe on the Hubble plot (redshift over luminosity (or distance). I understand that for relatively nearby galaxies, this appears to be a linear relationship but that because of the accelerated expansion of the...

Hi guys, my friend’s birthday is coming up and, as a gift, I want to make him a comic with a clever and/or funny punch line. It’d be nice if it were somewhat related to his interests and hobbies which include gaming, 3-D printing, and he also messes with his raspberry pi a lot. Now, the problem...

1\s(s^2+2) please give detailed explanation.

Hi all, What is the tool which can add my Listplot graph like: to an experimental figure as following: such that the (x-y) axes coincidence in both figure and graph: Actually I tried Mathematica as: data27 = Import["~/Events/scan.dat"]; idata27 = Table[{data27[[i, 2]], data27[[i...

Homework Statement I'm looking at an electric field plot around four (4) + and - point charges in free space. There are several points where the electric fields come together and make right-angled turns (in the limit). Is there a name for these points? Especially is there a traditional name for...

I think that first peak of the graph represent a resonance frequeny but i don`t know some peaks which are located after first peak. Is it a just noise? or some other?

Hey PFers. I recently did an install of Matlab R2015b on a x64 Windows 10 PC. It doesn't matter what I plot or how I plot it (e.g., plot(), scatter(),etc.), when I use the figure dropdown menu Insert→Legend I get the following error Error using assert Too many input arguments. Error in...

Hello, After long time i am able to find Laplace transform function but can't understand the bode plot which give information of frequency response and magnitude i think plaese anyway here how can push my thinking ahead in it?

Hello I have a set of data points, with errors (X1 , Y1 +- deltaY1) , (X2 , Y2 +-deltaY2) etc I have the covariance matrix for these bins I want to integrate this set of data points: SUM_i ( Y_i * X_binWidth_i ) How do I combine the errors, taking into consideretation the...

Hi, i was just wondering if someone would be able to tell me what ωπ means when finding the gain and phase margins on a bode plot?

I want to plot some graph like below (Source: http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.241409) in Matlab. Which command should I use?

Hello, Python,CFD and PF newbie here. I am using Spyder (Python 3.5) and I managed to plot my streamfunction in cartesian coordinates. I tried transforming and plotting in polar coordinates but I am not sure that what i have done is correct. I am not even sure what the plot should look like :/...

Hi , I was hoping you could look at this link and let me know if I have interpreted the method correctly http://i.imgur.com/5axTiBN.jpg As I understand it the transfer function has had s replaced by jw but also the top and bottom are divided by 10 - This is so that the brackets on the bottom...

Hello! I am yet very weak in statistics, but I am learning some basic finance, and this requires to create regression. Please, take a look at attached files - one excel that contains the results of regression and one screen shot of the window of StatPlus that I have to fill in. Before using my...

I used a function called ind2patch to make a big 3D block which contains a number of smaller blocks in 3 dimensions. Each small block has a value which the magnitude is represented by a color.One example is shown below: However, most of the boxes have very low or zero value and I don't need to...

Hello there! There is a problem with calculating the uncertainty from semi- ln plot. The linear fitting gives standard errors as you can see in attached picture. In the Y axis are ln J values, obviously. If the intersection with y-axis, x=0, then we get the point y=b=-33,21, and it's ln J', so...

Hi PF! I used NDSolve to find the solution to a differential equation. I then plotted the solution in mathematica. However, I would like to be able to plot this in LaTex, specifically in TikZ. Can anyone help me here? Thanks so much!

Homework Statement I was given a plot and a citation, but not too much clarification on what it represents. I believe it is describing mass transfer in a boundary layer. Can anyone clarify Homework Equations J. P. Hartnett and E. R. G. Eckert, Trans. ASME, 13, 247 (1957). The Attempt at a...

I'm trying to generate contours that plot with the animation using contour(X,Y) but it's not quite working. I only need it to be in the x-y plane at 0km depth (see picture for greater clarification) % A script to plot two 3D waves. clear %Define the total time for simulation T_total=10; %Set...

Hi all, I'd like to make a plot like that in [arXiv:1312.1935], FiG. (2), it's a function plotted in a plan of two variables. I tried : * ListPlot: for example; ##\lambda##[s_,f_]= s+f; list1 = Table[{s, f, ##\lambda##[s, f]}, {s, -1, 1, 0.1}, {f, -1, 1, 0.1}]; ListPlot[list1] But it...

I'm trying to use LTSpice in order to fine tune LC circuits, but a road block I've hit is that when I run the simulation and generate a bode plot, the previous plot is overwritten, so I can't visually compare the effects of the L C changes. Some graphing programs have a function that let's you...

Disclaimer: I'm not exactly sure that this topic would belong in this thread but I don't think it would fit better anywhere else. I'm working on writing a paper for my grad research project and my PI wants me to model the plots after another paper that our lab published in the past, but I'm...

How can i calculate this plot (photon energy dependence of the optical gain (or loss = negative gain) of GaAs with the injected carrier density as a parameter? Show calculated plot based on this equation Given parameter: mc=0.067 me; (effective mass of electrons in conduction band) mv=0.48...

Hi! I am a big fan of science fiction, military fiction and all sorts of media covering this kind of topic. :smile: So I have played Metal Gear Solid V: The Phantom Pain and in it there is this plot device called metallic archaea that basically enriches uranium quite easily. This invention...

Hello, I'm trying to figure out how to plot a certain vector valued function but I'm having a hard time. The problem gives me the following vector valued function: r(u,v) = <u + v, 3 - v, 1 + 4u + 5v> I don't know how to plot this. So far I've tried making a table with some u and v values to...

I have a picture which shows the magnitude of some value in terms of color, like this one: https://www.dropbox.com/s/yoh0n9cqftvrtlz/bar.jpg?dl=0 The higher the magnitude, the more it looks red. However there are only a few points at the edge has very high values and most of the points have...

Homework Statement Plotting the exponential exp(-cx), 0 ≤ x ≤ 1 with c = 1, 2, 3, 4. Use a for loop. Homework EquationsThe Attempt at a Solution for c = 1:1:4; for x = 0:1; F = exp(-cx); end end plot(x,F) I'm not really sure where to start.. Help is appreciated.

Hey so I'm working on a simulation to compute the multiplicity of two Einstein solids.. long story short I'm having a tough time plotting a function. To start, I defined the following: Which, when simplified yields: I named this simplified result K: Plotting this... What I get is...

I have a .txt file which is 50 rows x 50 columns filled with entirely 0's and 1's. I have tried to plot the data with and without spaces between each column. I keep getting this message: gnuplot> splot 'C:\Users\raf\Desktop\PolymerProject\monte carlo code\directionInitial.txt' with pm3d...

Derive $y=3x$ as a polar equation and plot it. ?

Grace plots are typically stored in files with a *.agr extension. Suppose I have two (or more) single plots: plot0.agr plot1.agr ... Suppose I want to combine these plots into a single file, with each plot displayed side-by-side, or a smaller plot within a larger, or whatever. We can call...

Hi, so for example in the figure below the missing mass squared has been calculated under the assumption of the detection of a pi+ particle decaying from a K+. What I am wondering is what is it that's bounding all the decays at 0.122 GeV2? And for the decays at all, what is e.g. bounding the...

So, I'm trying to plot a 3D "dipole" (an arrow with a small torus around it basically) in mathematica, and want to rotate it according to Euler angles... I use this code for the rotation matrix: rot[a, b, g] := RotationMatrix[g, {1, 0, 0}].RotationMatrix[b, {0, 1, 0}].RotationMatrix[a, {0, 0...

Homework Statement Below is the bode plot of return difference, 1+C(S)P(S) in a feedback system. Identify the frequencies where the feedback is large, negative, positive and negligible. P(S) = \frac{100}{s^2+2s+1} C(S) = \frac{220(s+50)}{s+200} Homework Equations Bode Plot, Feedback The...

Homework Statement I've entered the following piecewise equation into Mathematica: Plot[Piecewise[{{sin (t), 0 <= t < \[Pi]}, {5 + 5 cos (t) + sin (t), \[Pi] <= t < 4*\[Pi]}, {10 cos (t) + sin (t), 4*\[Pi] <= t}}], {t, 0, 20*\[Pi]}] But I am getting a blank graph in return. I've proofread my...

Homework Statement The state space model of a nonlinear system is x'_1(t) = 2x^2_2(t) - 50 x'_2(t) = -x_1(t) - 3x_2(t) + u(t) where x_1(t) and x_2(t) are the states, and u(t) is the input. The output of the system is x_2(t). Find the zero input response (u(t) = 0) of this system linearized at...

Homework Statement Hi all, I am an architect so engineering is not my strong point. for these equations I am unsure how to correctly determine the mode of failure and plot a graph. Any help would be greatly appreciated. Also the attached files have the formulas written and question written...

I carried out a physics experiment and I wanted to analysis the problem with matlab. I have some code in MATLAB that "works" as in it gives ok result but the numbers used are quite nonsensical, I need help making the reworking the equation with real numbers. I am not sure if this is the correct...

Homework Statement Plot the following function in maple (any graphics software): I_\theta = I_m (cos (\beta))^2 \left( \frac{sin(\alpha)}{\alpha} \right)^2 Homework Equations Range = -20 degrees to 20 degrees \beta = \frac{\pi d}{\lambda} \sin(\theta) \alpha = \frac{\pi a}{\lambda}...

Homework Statement The first order ramp unit response is shown in the graph below. Determine: 1. The transfer function. 2. Plot the error function e(t) then determine its maximum magnitude and the time http://s24.postimg.org/cdbhqm80j/Capture.png Homework Equations G(s)=(1/T)/(S+1/T) ... G(s)...

Homework Statement Homework EquationsThe Attempt at a Solution Hello, In part (b), I found ##k_{cu} = 0.5##. I found in part (d) a controller gain of ##k_{c} = -0.3## yielded a diverging output. Here are the bode plots for parts (a),(c), and (d). I don't understand how I should use the...

Is this the correct plot of gravity and motion? x(t) = x0 + v0 t + 1/2 a t^2 F = G m1 m2 / r^2 x(t) = x0 + v0 t + t^2 / (x2 - x(t))^2