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Gavin Seddon


Last seen: 7 mois il y a Actif depuis 2015

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Question


MAC MATLAB crashing on start up
Hello when i start MATLAB on my MAC it crashes I then start from an x11 terminal and i get /Applications/MATLAB_R2020a.app/C...

plus de 2 ans il y a | 1 réponse | 0

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Question


plotting x and y differential
hello I have plotted x and y data and seen evidence of a bifurcation. I want to plot x vs diff y. this is what i did : ...

plus de 2 ans il y a | 1 réponse | 0

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Question


using command to operate cftool
Hello I am using large data sets and cftool continually buffers. I have increased my memory to 96gb and the buffering remains...

presque 3 ans il y a | 1 réponse | 0

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Question


negative x axis meaning
Hello I have a vector plot created from multiple functions. The x axis values are incorrect and some are negative. Does matla...

presque 3 ans il y a | 1 réponse | 0

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Question


will increased memory solve buffering issues
Hello I have tables with many floating point values and when I try to use cftool my MAC starts buffering. It is a quad core i...

presque 3 ans il y a | 1 réponse | 0

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Question


viewing vectors from a table
Hello, My recent results have allowed me to generate a feather graph (found at: https://uk.mathworks.com/matlabcentral/answer...

plus de 3 ans il y a | 1 réponse | 0

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Question


incomplete graph from array
Hello, I have created an array of a table. a plot of the data shows a complete sine wave. When I plot the array using "con...

plus de 3 ans il y a | 1 réponse | 0

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Question


matlab function not recognised by excel
Hello, I have generated a matlab function and then taken the second derivitive. I want to place this function within an...

plus de 3 ans il y a | 1 réponse | 0

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Question


calculating x when y is > 0
Hello I have plotted a changing distance (d(x)) with time using cftool and calculated the function. Its derivative was calcula...

presque 4 ans il y a | 1 réponse | 0

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Question


linking table column label with symbolic function
hello using an uploaded table is it possible to define the column labels as symbolic functions? Thereby enabling subsequent sy...

plus de 4 ans il y a | 1 réponse | 0

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Question


plotting derivative function against Y value
hello I have a distance/time graph and I want to plot the velocity against distance. I have created the velocity function v:eva...

plus de 4 ans il y a | 1 réponse | 0

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Question


Unsual gradient from gradient
Hello, when I try and calculate the gradient I receive slope = gradient (fx) slope = (7167*x^2)/25000 - (3523*...

presque 5 ans il y a | 1 réponse | 0

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Question


Radian calculation from either differential or gradient
Hello, I have gradiant values (and their differentials). However, my motion is in a circle and mathematically the 2πrad may be ...

presque 5 ans il y a | 1 réponse | 0

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Question


Using 0 1 chaos test
Hello, I have some noisy data which I would like to test for chaos. I have checked the web but cannot find the instructions for...

environ 5 ans il y a | 1 réponse | 0

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Question


Substituting and evaluating function
I have attempted to substitute the X variable into my function and evaluate it. This is the result. If it is not possible please...

environ 5 ans il y a | 1 réponse | 0

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Question


Gradient is zero yet exists
Hello gradient (140,150), the answer is 0, but it exIhere is my error please? Also, is *diff* for calculating the derivative?...

environ 5 ans il y a | 1 réponse | 0

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Question


Import data to splinetool create spline with function
Hello, initially I created a spline with cftool. Is it possible to import the same data to splinetool and generate the function...

plus de 5 ans il y a | 1 réponse | 0

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Question


Creating phase plot from initial data
I have a data table with no associated function, is it possible to generate the vector field and phase diagram from this? GS....

plus de 5 ans il y a | 1 réponse | 0

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Question


Determining function for smoothing spline
Hello, my data when plotted resembles a plot of a sine function and consequently a polynomial curve will not converge. Therefor...

plus de 5 ans il y a | 1 réponse | 0

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Question


slope at defined co-ordinates
Hello I have defined my distance function as d = (5757*x^3)/100000 - (2227*x^2)/10000 + (1303*x)/2500 + 25/2 I then diffe...

presque 6 ans il y a | 1 réponse | 0

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Question


Gradient command producing multiple functions
Hello, when I use the gradient command I am given multiple functions as the answer. I assume these are the gradient at each 'ro...

presque 6 ans il y a | 2 réponses | 0

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Question


error when plotting function
hello, when i give this function i get the following error will someone please correct me ? >> fplot(@(a1*sin(b1*x+c1) + a2...

environ 6 ans il y a | 1 réponse | 0

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Question


Multiplying spreadsheet column by variable
Hello can a spreadsheet column be multiplied by a variable of a function to generate a new column? g.

plus de 6 ans il y a | 1 réponse | 0

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Question


getting an import error
hello when I try to Import data I receive Error using uiimport (line 142) Java exception occurred: java.lang.NullPointer...

plus de 6 ans il y a | 1 réponse | 0

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Question


Error using plot command
hello, I am attempting to replot my data however I received this error Error using symengine The dimensions do not match. ...

plus de 6 ans il y a | 1 réponse | 0

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A répondu
generating graph from curve fit plot
This can be found: http://uk.mathworks.com/help/curvefit/plot.html

plus de 6 ans il y a | 0

| A accepté

Question


generating graph from curve fit plot
Hello, is it possible to use the fitted curve from cftool rather than use the function it has calculated to generate the grnap...

plus de 6 ans il y a | 1 réponse | 0

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Question


.fig won't open
I have created a.fig file which is set to 'visible' however when I try and open this either using File >Open or openfig it is n...

plus de 6 ans il y a | 2 réponses | 0

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Question


Function plot appears reversed
Hello, The plotted function Y value is e20 when it should be 13.6e1. So rather than a graph starting linear and going constant...

plus de 6 ans il y a | 1 réponse | 0

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Question


Function plot limits produces errors
fplot (@(x) was used to generate a figure the resulting curve shape is wrong and errors are produced. The correct X minimum a...

plus de 6 ans il y a | 1 réponse | 0

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