Community Profile # sloppydisk

### University of Twente

Last seen: 8 månader ago Active since 2018

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Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

mer än ett år ago

Solved

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

mer än ett år ago

Instead of ga, what else can I use to solve nonlinear optimization problem with integer constraints?
http://mathworks.com/matlabcentral/fileexchange/35720-minlp--mixed-integer-nonlinear-programming Here is a file exchange entry...

mer än 3 år ago | 1

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Question

What is the best practice for passing data to use for visualization?
What is the best practice for passing variables to a function for visualization? I am working on a simulation of a flexible me...

mer än 3 år ago | 0 answers | 0

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Apply Small Perturbations to Simscape Multibody Rotational/Translational States for Model Linearization
You can specify motion to the 6-DOF joint by going to actuation and setting the force to be automatically computed and the motio...

mer än 4 år ago | 1

| accepted

data every second. want matrix with mean data of every minute.
Use |retime| and |datetime|: a = ones(100, 7); a(:, 7) = randi(15, 100, 1); mins = repmat(1:10, 10, 1); a(:, 5) = mi...

mer än 4 år ago | 0

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Solve nonlinear equation with positive solution (fsolve)
You can set an assumption on the equations using |assume|, in this case there seem to be no solutions for this problem. x ...

mer än 4 år ago | 1

Why is this sparse multiplication failing?
You could use the relevant indices to perform the multiplication: b = sparse(17249876309, 29); b(430: 490) = 1; c = ...

mer än 4 år ago | 0

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How to remove entries form a struct array?
Logical indexing should work, just note that you need brackets around s.area. field1 = 'area'; value1 = num2cell(1:10) ; ...

mer än 4 år ago | 0

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How can I find circle diameter using arc ?
Take three points on the arc, draw lines between them and take the bissectors of those lines, where they meet is the center O. T...

mer än 4 år ago | 0

How user move lines that is drawed in a figure interactivly and extract the data of new location of lines ?
Take a look at doc impoly or doc imline For example: imshow('gantrycrane.png'); impoly

mer än 4 år ago | 1

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Access Time Table elements in a struct array
You could use arrayfun to put the elements you need in cells and then combine them using cell2mat: a(1:5) = struct('myFiel...

mer än 4 år ago | 0

How to plot three y-axes in one figure, where each one y-axis have three lines to be plotted?
Check out doc subplot For your example: figure(1); subplot(3, 1, 1) plot(x,y11,y12,y13);%1st y-axis subplot(3, ...

mer än 4 år ago | 0

Making a more user friendly simulink model
Select the subsystem and press mask>edit mask or CTRL+M. Then go to parameters & dialog and you can add some _Edit_ parameters c...

mer än 4 år ago | 0

How can I invert the following matrix ?
The system of equations does not have a solution, they are linearly dependent. What do you mean by _"the result is not the resul...

mer än 4 år ago | 0

Can anyone explain the loops in this code?
They're counting the number of white points, black points and matched data, but they could be replaced by using logical indexing...

mer än 4 år ago | 0

How to optimise a definite integral?
You don't need to have the analytical result, simply pass the integral as the objective function with a function handle and k2 a...

mer än 4 år ago | 0

Plot a line between 2 points and extend the line a determined distance
I would first read the documentation before grabbing stuff off file exchange if I were you, because the fillline is really not n...

mer än 4 år ago | 0

Nested for loop produces plot that is shifted horizontally
You evaluated at the index of the timevector, rather than at the time itself. You could write |time(time_point)| instead to get ...

mer än 4 år ago | 0

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FFT of sine function
You'll get both positive and negative frequencies, see doc fft for an example of a single-sided spectrum, i.e. only po...

mer än 4 år ago | 0

Getting the real solutions of non-polynomial equations
What do you mean when you say you only want real solutions, don't you just want the correct solutions? You could take the real p...

mer än 4 år ago | 0

How can I find the area above the parabolic curve for this particular case?
An elegant way to do this is via function handles: x = linspace(0, 11, 100); y = @(x) .0012*x.^1.5; yforArea = @...

mer än 4 år ago | 0

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Query regarding solving differential equation
I'm guessing you are trying to use ode45 with variable timestep, make sure to pass y and dy/dx as an interpolation function such...

mer än 4 år ago | 0

How to model human leg joint stiction?
Are you sure you want to use first generation Multibody software? In second generation you can use the <https://nl.mathworks.com...

mer än 4 år ago | 0

Sort the array by template
a1 = [1 4 2 5 7]; b1 = 1:5; mySecretOrder = [1 3 2 5 4]; a2 = a1(mySecretOrder); [~, order] = ismember(a2, a1)...

mer än 4 år ago | 3

Need Help this assigment
GMDP is a struct GMDP.Ploc is a field of GMDP GMDP.Ploc{1} is a cell containing a 3D array GMDP.Ploc{1}(:,:,1) is...

mer än 4 år ago | 1

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How can I clear an entire table column without deleting the variable?
You can simply overwrite the values by indexing with curly braces if that is what you want t = table(rand(6, 1), rand(6, 1)...

mer än 4 år ago | 0

Curve fitting to data
What you are looking for is just a linear fit to your exponential function, you can do this by using the |mldivide| operator "\"...

mer än 4 år ago | 2

| accepted