Plot Definition and 717 Threads

Homework Statement Make a blode plot of a series RC high pass filter (log(gain) vs. f)... Homework Equations log(Gain)=log(Vout/Vin) I'm pretty sure the "Gain" is just the transfer function, for a highpass it should be the V_in = Vsupply, and V_out = V_capacitor. The Attempt at a Solution I...

Homework Statement Find the transfer function for the filter on the attached picture and sketch it in Bode diagram, if you know ##Q_0 =\frac{\omega _0L}{R}>>1## and ##\omega _0^2=\frac{1}{LC}##. Homework EquationsThe Attempt at a Solution If I am not mistaken, we defined the transfer...

I'm studying statistics from the book "design of experiments" by Montgomery and about the t-test it's stated it is necessary to check the samples are described by a normal distribution throughout a normal probability plot and I have noticed the y-scale is not familiar to me, it's neither linear...

Hello guys, Have an issue here. I have a large array of numbers, X and Y values.These are coordinates of 9 curves on the same x-axis , so the X values are repeating (433 X values repeating 9 times), what I need to do is to sum Y values for each X value separately. and then plot it (bar plot...

Homework Statement Plot the graph of lnη vs 1/T for water (use values from table) and alcohol (values measured previously). For water: (Temperature in Kelvin) T=293.15 η=1.002mPas T=308.15 η=0.726mPas T=323.15 η=0.548mPas For alcohol (measured): T=293.15 η=3.202 T=308.15 η=1.254 T=323.15...

Homework Statement hi,guys! Problem: s(t)=At-Bt^2+Ct^3,where A,B,C is know constants. What is the path,velocity and accelartion after 2s from beginning of motion. Homework Equations The Attempt at a Solution So v(t)=s'(t) a(t)=s''(t) But where i get confuzed is when I am asked to calculate...

How would I plot a 3D phase and magnitude plot for the function \(z^{1/3}\) in Matlab? n = 3; % number of roots m = 18; % grid number r = (0:m)'/m; % radius vector theta = pi*(-n*m:n*m)/m; % angle vector z =...

I plotted the real and imaginary parts of a complex function \(z^{1/3}\). The two plots are similar to the Riemann surface is that correct?

As a byproduct of the last slides on Koide, I have done a semilogx plot of the standard model in latex with the tikz and pfgplots packages, and it can be generically useful to everyone. So here is the gist: https://gist.github.com/arivero/e74ad3848290845de5ca I call this picture the "small...

I have a 3D Plot in Mathematica and I would like to get coordinates for points (all points) that were plotted.

Hi! Here is my m-file for Fourier series plot: clear clc syms n a0=input('Enter coefficient a0: '); an=input('Enter coefficient an: '); bn=input('Enter coefficient bn: '); a=input('Enter lower boundary: '); b=input('Enter upper boundary: '); t=linspace(a,b,10000); sum=0; for n=1:10 %%n could...

We are given the velocity at which an object is projected (30 m/s) at an angle theta. I have to "Plot the range R as a function of angle theta (a value somewhere between 0 and 90 (including 0 and 90)). My thought was to possibly determine R using theta = 0 and theta = 90 to find a range, but...

Homework Statement Homework Equations ∇.F(r) The Attempt at a Solution I keep trying to plug F into the divergence theorem but end up with very ugly answers that I know are not right. Is there a simple way to do this question? Also, how the heck would I plot this for for the...

Homework Statement Here is a plot of Reflectance vs Wavelength from a multilayer thin film stack of alternating high and low refractive indices: I want plot this in Matlab, but what equation was used for this plot? The diagram is from my textbook, there are many like it online but...

Homework Statement I'm trying to make a theoretical Bode plot of a High pass filter (made up of a capacitor and a resistor). The transfer function is: ##T=\frac{V_{out}}{V_{in}}= \frac{R}{R+1/(j\omega C)} = \frac{1}{1-j\omega_0 / \omega}## With a corner frequency of 5 kHz or in...

Hello, I have the following problem ( which should be uploaded below the text ) I've done part a) correct, I know how to sketch the bode plots but don't know how to find the gain in order to draw correct magnitute response bode plot. This is where I am stucked and if I find out how to find...

Hello. I have been in contact with some papers that use DFT softwares for calculating properties of solids, nanoparticles, etc and a lot of them comes with colorfull plots of density of states. I know the density of states gives the number of electrons in the range of energy, but what I don't...

I am a UK iB student who has just finished year 12 (penultimate year) of secondary education. As part of the iB I have to do a 4000 word extended essay and I chose to do it on the coefficient of restitution of a metre ruler (I am aware this is slightly bizarre and unusual but I had reasons...

Since i am using MATLAB ode23s solver, it contains two MATLAB files . One contain the differential equations and another contains plotting and to run the m-files. The code are working perfectly. Now i want to know the time step size that is using on the plot. How can i get the output of time...

First of all I see we have an editor latex so my friend markflo I won't have morre problems But my problem is about a graph Plot a continue function graph with the following data o properties f(1)= 0 f of first derivative in (3) = \infty f of first derivative in (5) = 0 first derivative...

First note that I am just learning Mat lab, and running a program created by someone else. I have a program which is displaying four differential equations on screen, all with various parameters assigned in the beginning. i.e. alpha=10; beta=0.04; gamma=0.020; etc. For...

hey pf! i am trying to plot a contour (topographic) graph the following ##f(x,y) = \frac{1}{x^2+y^2} e^{x-(x^2+y^2)^{.5}}## where ##f(x,y) = k## where ##k = .001## and doubles in size for about 8 iterations. my attempt is here: x=-3:0.25:3; y=-3:0.25:3; z=.25:.25:1; [X,Y]=meshgrid(x,y)...

How did they get the blue box? I know where they got the 0.5 inside the brackets from but not sure about the rest. The bode plot in my data book has log10(wt) as the x-axis..

hello, does anyone know which softwares are used to plot the following two figures ? I guess the two figures ae plot with different softwares. I hope someone could give me some references. Thanks.

Hello all, I am trying to plot a simple trajectory in MATlab. Here is the code I wrote, v0 = 100; theta = pi/4; t=0:0.1:20; horizontal(t)=t.*v0.*cos(theta) vertical(t)=t.*v0.*sin(theta)-4.905.*t.^2 %teacher gone missing, again, ARRRGGHHH! title('Ballistic Trajectory of a Projectile')...

Homework Statement Need a free program to plot expressions in polar coordinates. For example, I want to plot the equipotentials for an expression in polar coordinates of the potential for a dipole charge, 4q and -q separated by a distance L. Homework Equations V=kq(4/r1 - 1/r), where r12...

Hi. According to the attached article I couldn't draw fig1 with eq1 using mathematica.

Hi all, Consider the scatter plot below (example only): The bottom subplot looks like a residual plot (y-x), but it's over (1+x). I'm hoping someone can explain what this is and the benefit of it. Thanks

Hello everyone, I need to find a way to measure and plot the impedance of a set of chokes across a frequency range of 10kHz. Any ideas how I can do that? I have a frequency generator, a variable power supply and an oscilloscope with a spectrum analyzer.

On Wolfram Alpha it will offend give you a contour plot, and it has similarities to a bifurcation plot with respect to a variable and a parameter. What is the difference between a contour plot and a bifurcation diagram?

Homework Statement Homework Equations The Attempt at a Solution Hello, I am having serious problems being able to draw bode plots. At first the professor said to put everything into standard form with an (ω/ω_c)...and then there is also a table in the textbook with standard forms that don't...

Homework Statement I need some help with the following problem (it is from an old test paper). Below is the Bode plot of the open loop gain of an amplifier: A constant fraction β=0.1 of the output is fed back to the input. This feedback does not load the amplifier. Using the Bode plot...

Good morning! I have 3 log scatter plots that I want to establish smooth maximum and minimum lines. What is the usual mathematical method to do that? (Image and excel file links below.) The black lines on the scatter plot images are hand drawn. The third scatter plot is especially tricky and...

How would I estimate the transfer function for transmissibility given this plot: I am told that the data does not include phase information, but assume that the phase is 0 deg at low frequency and -180 deg at high frequency. I must provide a brief rationale for each component of the transfer...

Homework Statement Numerically integrate and plot the response of an underdamped system determined by m= 100 kg, k= 20,000 N/m, and c = 200 kg/s, subject to the initial conditions of x0 = 0.01 m and v0 = 0.1 m/s, and the applied force F(t)=150cos(5t). Then plot the exact response. Homework...

Hi all, I have made a BSFC plot in MATLAB with engine data tested on an eddie current dyno, The code I used for it is: >> NP=40; >> [RP TP]=meshgrid(linspace(min(RPM),max(RPM),NP),linspace(min(Torque),max(Torqu e),NP)); >> BSFC_IT=griddata(RPM,Torque,BSFC,RP,TP); >> NC=12; >>...

Bode Plot It's The biggest one in the entire universe! Homework Statement The question is stated at the top of the image below. Did I answer the TWO questions with this image? https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc3/t1/1891009_10151901549150919_346181425_n.jpg...

This is part of a lab report so not sure if the template agrees with what I am asking but basically using the Arrhenius equation in the form of ln(k)=ln(A)+(\frac{-E_a}{R})(\frac{1}{T}) I plotted a straight line graph of ln(k) vs 1/T and found the gradient to be -5525. Its the units that are...

Homework Statement Write a Matlab function to compute and plot real and reactive power consumed (or supplied) by a known impedance (the value of complex impedance should be used as the function’s input) as a function of either current or voltage (use a character: V or I as a second input) for...

I want to develop a new model for calculating the frequency of thermal radiation. It is generally accepted that thermal radiation emits white noise with all the frequencies within a certain bandwidth. But when white noise interferes with communication systems, it is carried on what is known as a...

Homework Statement A Nyquist (polar) plot of a standard second-order system is shown below (drawn to scale). Suppose a unit-step function is applied as the input to this system. Determine the peak percentage overshoot expected in the system output. Homework Equations The Attempt at a...

Homework Statement Plot x(t) for a damped system of natural frequency w_n= 2 rad/s and initial conditions x_0= 1 mm and v_0 = o mm/s, for the following values of the damping ratio: z= 0.01, 0.2, 0.6, 0.1, 0.4 and 0.8 Homework Equations The Attempt at a Solution I began by defining...

What is the functional form of rose petal with 6 petals? I am asked to graph this function with matlab, but it seems impossible according to my calculus textbook. According to my textbook, a rose curve can have the form r = a \cos n \theta or r = a \sin n \theta. When n is even, then there are...

Homework Statement http://imgur.com/OowiMCR As noted in the image: In the circuit below, R1=R2=10kΩ, and C=0.1μF. Plot Vout(t) if the input, Vin, is a step function of height V0 at t=0 Homework Equations Vcap=V0-Ce-t/RC The Attempt at a Solution I was hoping someone could...

In my project I basically need to plot 3D color coded surface graphs using MATLAB taking input from multiple .dat files (i have 1000 .dat files). In each file I have parameters x and y, and when I take multiple files, each having a different value of z, I can finally plot a graph. so does anyone...

Hi all, I was hoping someone could give me an overview of what a U-V vs V-J plot is and how it's used to categorise galaxies. I believe it's relates to flux observations of galaxies through different photometric band filters. So U-V is the restframe magnitude with a filter from the...

Hi all, I have a function varying in mass varible as 1000 - 1500-2000, etc, I made a list of the values of this function for these values of mass but when I plot by mathimatica by ListPlot it appears some how discerte between the points I defind not a continus graph. So any help to...

Anyone have an idea to find a first and second natural frequency from time domain and frequency domain plot resulting from an accelerometer measuring the vibration in cantilever beam ? Thanks very much :)

that's my programe : n=0; T=2; Ts=T/200; t=-T/2:Ts:T/2; for n=0:0.1:8; V= 0; V=V+8/pi^2*(-1)^n*sin(pi*(2*n+1)*t)/(2*n+1)^2; pause drawnow plot(t,V); end When T=2, write a Matlab program to visualize the Fourier series (with animation) and investigate the...

I am creating a plot in a for loop adding each iteration to the plot in matlab. This part works fine but after the for loop, i am trying to format the title and axis and that is clearing the plot. I can add the legend without it clearing. I also tried hold all but that did not work either. Any...