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Use kinetic data for computing ODE
I have time-dependent data below where left column is time and the right column is parameter x. 0.0000 57.2000 ...
7 years 前 | 0 个回答 | 0
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How to solve singularity problem while using fsolve
Hi,I am trying to solve for x in a equation using fsolve. Below is the code and equation: a = 0.1886; b = 0.6886; c =...
9 years 前 | 2 个回答 | 0
2
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Fitting an experimental data to the finite difference approximated solution
Hi, I know the finite difference approximation is well established. However, I have one question. I am working on a simple syste...
10 years 前 | 1 个回答 | 0
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Drawing a straight line to a linear part of curve
Hello All, it would be very helpful if someone can help me out with drawing a straight line to the linear part of th...
10 years 前 | 1 个回答 | 0
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Sum of series to infinity
I am trying to run the following code: t = [0 60 120 180...3600]; l = length(t); for i = 1:l syms n; sum = syms...
10 years 前 | 2 个回答 | 0
2
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Non-linear data fitting to a model
I am trying to fit some data using the following code: xdata = [0.0600 0.1250 0.2540 0.4050 0.5450]; ydata...
11 years 前 | 1 个回答 | 0
1
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How to skip the element that is 'inf' value where fitting a curve
Hello, I have been trying to get some constant values for a given set of experimental data. The fitting equation is below: k*...
11 years 前 | 1 个回答 | 0
1
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During Nonlinear optimization using lsqnonlin(), is it desired to have resnorm value as low as possible?
I have been using lsqnonlin()for my data. I have put different initial guess to initiate the process and also scaled it since my...
11 years 前 | 0 个回答 | 0
0
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using lsqnonlin () for solution of an nonlinear equation
Please consider the following code: function diff = myfun(D,Y) t = 0:30:600; l = length(t); a = 0.5*...
11 years 前 | 1 个回答 | 0
1
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Solving an unknown under exponential series
Hello, I have an exponential series y = sum (1/n^2 exp((-n^2)(x)(t)); where y has different values for |t = 1 to 100|...
11 years 前 | 1 个回答 | 0
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How to optimize a specific logistic type equation using 'fminunc' and quasi-newton algorithm ?
Hello, I have y (dependent variable) and x (independent variable) data and want to develop a logistic model in the form of y = y...
12 years 前 | 1 个回答 | 0
1
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Obtaining average RGB value of an image with selected area
Hello, I have an irregular shaped image. I want to have the average RGB value of the image with selected area. How Can I select ...
12 years 前 | 1 个回答 | 0
1
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Gaussian Distribution
Hi All, I am trying to plot a amplitude Gaussian distribution in Matlab. I have only amplitude peak, mean and sigma (sd...
13 years 前 | 2 个回答 | 1
2
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Problem with solving
Here is short programming: tau = input('Enter the value of tau: '); b = pi*(1-2*tau)/tau; syms x; solve('sin(x) = x + b') w...
14 years 前 | 1 个回答 | 0
