Plotting Definition and 560 Threads

Hi, I'm having trouble plotting the tangent line on a curve (or the derivative evaluated at a point) in spice. I know how to plot the derivative of the entire curve using the d() function, but I don't know how to evaluate it at a point. Any help is much appreciated!

(not for homework, just for fun) I'm doing research with my professor, and as an 'easy project' (har har) she gave me the task to replicate the CFA Redshift Survey in a polar graph plot. So with some clever googling I found the .dat file that has the most recent info in it, and I'm fairly...

Help with printing a string I have a theoretical plot for the fresnel diffration pattern, however i want maple to show the values plotted on the x and y cordinates. How do i do this. Please explain in simple terms heres my code > fresdi:= proc(a,b) (FresnelC(a) - FresnelC(b))^2 +...

Homework Statement Plot the following for x = 0 to 8: This is part of a larger engineering problem, but I am stuck here, I have no idea how to plot a phasor. The original function is: y(x,\,t)\,=\,2\,cos\left(\frac{\pi}{6}\,t\,-\,\frac{\pi}{4}\,x\right) Homework Equations...

Homework Statement Preliminary questions: 1. John's weight is 618 N. He is sitting on a bosun's chair which is suspended from a spring. John's feet are pressing vertically down on a bathroom scale which reads 45 kg. What force is John exerting on the bathroom scale? Correct, computer...

Homework Statement y'=ay-by^2-q, where a, b are positive constants, and q is an arbitrary constant. In the following, y denotes a solution of this equation that satisfies the initial condition y(0) = y_0. a. Choose a and b positive and q < a^2/4b. By plotting direction fields and...

I want to map the temperature gradient in my part of town. I live within spitting distance of the lake and want to demonstrate the lake effect. Ideally, I would make the geographical location of reading-taking as a constant (a grid of points across the area) and record the temperature value...

Is there any way, in Mathematica, I can plot a straight line in a 3D plot environment? For example: Plot3D[{{y = 1 - x, z = y - 1}}, {x, -5, 5}, {y, -5, 5}] plots two surfaces, not their intersection (which is a straight line). Thank you in advance.

I have data for the positions of particles in 3D space and I'm trying to use MATLAB in order to visualize it. How do I plot little balls in 3D? The only function I can find at the minute is streamParticles but I'm looking for something simpler. EDIT: Nevermind, I figured it out. You simply do...

Hello math gurus, I'm using Bezier curves in my Perl application to chart currency trading data. Having no formal math training, I've framed my questions in a modeling context. I want to step along the major axis (on integer boundaries), and calculate real values on the minor axis. I'm...

Anything free that is? BTW, I have a biological aversion to Gnuplot.

Homework Statement I have a function of temperature, and I am asked to do the following: "Plot it in logarithmic scale as a function of the logarithm of temperature" The Attempt at a Solution Does this mean I just make the horizontal axis, T, a logarithmic numberline? Or do I have to...

hi, how can i plot the bode plot for this transfer function: 100 ---------------- s^2 + 10s + 100 i have 2*ksi*w=10 w=sqrt(100)=10 thus, ksi=1/2 -ksi*w=-10/2=-5 so the overshoot will be at ksi which is at 1/2 and my magnitude is 1. i don't see how i can find my...

Hi , I want to create a simple series which give me the following: 0 1 2 3 4 5 . . . from the cells. Please can some help me with it? what I really doing is: I have a set of numbers which represent voltages (of a nodes) inside a dielectric. say: 0.854 0.756 0.659...

Can one plot the streamlines of a fluid flow using mathematica? I never tried mathematica, actually none math software like that, so I'm sorry if this is a stupid question.

Homework Statement I have to plot some data for a lab writeup. It's based on the frequency response of fluid catheter-transducer systems. Part of this writeup includes making Bode plots for the gain and phase shift. I know how to plot my data; the problem that I am having is that I want to try...

Hi everyone, I have an expression for a summation and want to find out where it converges precisely. I decided to work out the sum for i=10,100,1000 etc. I logged the results, then took the recriprocal and then plotted it as the x-axis in Excel with the y-axis as my result. (So that the y...

I'm tring to plot a nuclear decay curve in Maple. I need to calculate the activity at regular time intervals which I'm doing by using a repetition statement to create an array something like: > for time from 1 by interval to 600 do... etc. It's working the arrays out fine, but when I...

Hello, I could use some help with plotting. I need to plot the intersection of three cylinders: x^2+y^2=1 z^2+x^2=1 y^2+z^2=1 it's really hard to visualize how this shape looks like, and I need to plot it. I was told that I should use Mathematica, but I'm not too familiar with all the...

I want to plot in gnuplot the function , with the range being: 0<z<3 -5<x<5 -5<y<5 What is the command? Thanks in advance, fellows.

I need mathematica to plot y=\frac{(a_0+a_1)\beta}{\beta^2-a_0a_1} by assuming that a_0<0,a_1<0,-a_0-a_1<a_0a_1\pi. by telling it to ignore the singularities, etc, but it keeps telling me that beta is not a machine sized real number at blah. Also, how do I specify a range (ie, y from -10 to...

I'm having a really hard time with this question... Consider the function g: [0,infinity) --> R shown in figure 7 (Figure 7 is just a graph of a curve defined as z=g(s), where the horizontal axis is the s-axis) Let f be a new function given by: z = f(x,t) = g((x^2)+(t^2)-1). Plot the level...

The energy levels of a quantum particle confined to a cubical box are: E = \frac{\hbar^2 \pi^2}{2mL^2} (n_{x}^2 + n_{y}^2 + n_{z}^2) where nx, ny, nz are postiive integers Define the dimensionless energy \epsilon = E \frac{2mL^2}{\hbar^2 \pi^2} and define S(e) to be the number of states...

Hi, I have to draw this kind of graphs on the computer: http://img285.imageshack.us/img285/1690/image1nc4.jpg http://img427.imageshack.us/img427/6483/image2it9.jpg .[/URL] I tryed to plot the graph of the function in mathematica, export it into .wmf file and then add some of the lines and...

In programming in Java I've frequently wanted to plot functions, meaning I've had to convert a double array of function values (and a corresponding array of their domain values) to integer arrays of coordinates to plot. I've always found this to be a pain in the neck, especially if you're trying...

Well, this is really confusing me. I am suppose to be graphing a given situation into a v(t) vertical velocity graph. The following occurs in 6 seconds (6 points on the graph): Starting at y = 0 m, a stone is thrown straight up on the edge of a cliff until it reaches its maximum height at 2...

please help hi there, i've just started using MATLAB and need to do some task, but i don't know how, so maybe someone can help? basicly, i need to plot all the curves of the function v(t)=Vp*e^((a+c*t)/(1+b*t)), whille changing all the values of Vp,a,b,and c between 0 and 1, with step...

I am trying to recall the formula that I call the harmonic curve, that gives the curve that begins at 1 on an x and y-axis where x & y equal 1 and then for every posting therafter:rolleyes: , the curve approaches each axis but never reaches the axis. Anyone know the forumula that will produce...

My notes from lecture are somewhat deceiving. I have this table that is supposed to make plotting the phase portion of a Bode plot simple. I understand the magnitude portion, however I do not get what is being said for the phase portion. I am spending too much time on something that is supposed...

:shy: Plz. help me in plotting graphs like xsin(x),xsin(1/x) etc.Also give me tips and shortcuts to plots graphs like tan x -x or tell me any good piece of software to solve this problem

Hey guys, Is there anyone good with MATLAB for loops? I am having trouble with getting an embedded loop within another loop to work. I am trying to vary two parameters and create a surface plot with a third variable as the dependant. What I really need help with is how to get the LHS...

My excel does not allow me to change the spacings of the x-axis as it is shaded in gray. What should I do so I can change it?

every subect seem to be different! which kind of graph and a lot what axis do i plot, if i was to do plot resolution against lux! plus anyone kno the proper way to do this in excell. thanks

In the equation for Hookes law what values do I consider if I was to plot for the value of k?. Would plotting T vs M give me this and would the gradient be equal to k?

Hello everyone. This problem has 4 parts. I got part (a) which is suppose to be the hardest part but I'm confused on how to (b) Plot Qn(t) for n = 1...4 observe wether the iterates seem to be converging. Well this is the series solution I got for the differential equation...

Ok, so I've been given a curve in polar coordinates. I came up with a parameterisation: x(t)=rcos(theta) y(t)=rsin(theta) But now I have to plot the graph using MATLAB and I have no idea. Theta lies between 0 and 2pi. This is what I put in and got back in matlab: >> t=[0:pi/50:2pi]...

Hello ladies and gentlemen, Does anyone know how to plot the plane y=2 in 3d? I'm looken for a curve of intersection with a surface and I don't seem to know how to plot the y=2 plane :)

I searched and I didn't find anything for this so here goes: I am looking for a graphing/plotting package that will allow me to graph data and plot equations on the same graph- publishing quality. Does anyone know of any open source software for Linux (FC3 to be exact) that does this? I...

how to plot the irrational number pi on a number line. i know the procedure for square roots of different non-perfecr square number. it is by drawing a perpendicular at a suitable integral length again at suitable integral length such that the hypotenuse is of required length as per the...

I am using a bode plot program using Matlab to try and plot transfer functions. Here is the program I have: http://www.swarthmore.edu/NatSci/echeeve1/Ref/Bode/BodePlotGui.html Everytime I try and type in the command that it says to use, it gives me a tf is an unknown variable. Does...

Im trying to plot a 3d surface graph, but I am having trouble. I have 3 data inputs, x,y,z. I also had X and Y=Y' which are the min:int:max values. Because I only have a few points, I tried to do Z= griddata(x,y,z,X,Y) to interpolate the results. But it comes up with an error saying that not...

Maybe not the proper place to post... but it seems like physics forums is going through some type of "crazy" change right now. Anyways... I'm having trouble finding a website with directions on how to plot a system of equations in MATLAB. If anyone has a basic M-file they could show me, or a...

Hi I need to "plot the output response of the system shown to the input stimulus given" I suppose it would help if i knew where to start, but I'll try and explain as best I can. There are two drawings. Drawing 1 - shows a rectangle with 1 / 1 +0.5s inside and a line drawn...

0=\frac{cos^2x}{x}-\frac{1}{5} \frac{1}{5}=\frac{\cos x \cos x}{x} 5=\frac{x}{\cos x \cos x} 0=x \sec ^2 x-5 is this true? when I plot this, it doesn't give me the same function

I'm having a bit of difficulty plotting y=\left( \frac{3}{2} \right) ^{1/3} \arcsin ^{2/3} x \qquad -1 < x < 1 I don't know how to work around the problem associated with the domain of \arcsin x. Is there any way to do it? Any help is highly appreciated.

Hi there, I have a simple function and I want to plot it in MATLAB but i get an error. Maybe someone can help. The function is of the type 1/(X^3 + X^2 +1) I can plot a polynomial but I have no idea about the function above. Thnx

I've had quite a bit of difficulty to properly fit into the screen the direction field plot of y^{\prime}=te^{-2t}-2y which is happening because the solution to this differential equation is pretty ugly. I'm working in Mathematica 5. The plot and the notebook are attached so that you can...

(i guess this should be easy, but I'm struggling with this section...) I'd appreciate help! I'm not quite sure how to do this. I posted the diagram at my web site...the question is also there, but I typed it here just to give you an idea of what it is about. Thanks! The website...

I tried some formulas on my graph calculator after reading about root mean square calculations of power and physics. Plot these using radians: Y1 = (sin(X)^2)^(1/2) Y2 = (tan(X)^2)^(1/2) Y3 = (tan(X)^3)^(1/3) Axis: 0<x<2(pi) 0<y<2(pi) or zoom to fit! kinda cool huh! Has anyone...

Is it possible to input a function into Excel e.g. 1/(x^2+4) and get a graph? How do you draw graphs of functions on Excel?