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sloppydisk


University of Twente

Last seen: 17 Tage 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...

5 Monate 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...

6 Monate ago

Answered
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...

mehr als 2 Jahre ago | 1

| accepted

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...

mehr als 2 Jahre ago | 0 answers | 0

0

answers

Answered
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...

mehr als 3 Jahre ago | 1

| accepted

Answered
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...

mehr als 3 Jahre ago | 0

| accepted

Answered
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 ...

mehr als 3 Jahre ago | 1

Answered
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 = ...

mehr als 3 Jahre ago | 0

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Answered
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) ; ...

mehr als 3 Jahre ago | 0

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Answered
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...

mehr als 3 Jahre ago | 0

Answered
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

mehr als 3 Jahre ago | 1

| accepted

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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, ...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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 ...

mehr als 3 Jahre ago | 0

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Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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 = @...

mehr als 3 Jahre ago | 0

| accepted

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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...

mehr als 3 Jahre ago | 0

Answered
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)...

mehr als 3 Jahre ago | 3

Answered
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...

mehr als 3 Jahre ago | 1

| accepted

Answered
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)...

mehr als 3 Jahre ago | 0

Answered
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 "\"...

mehr als 3 Jahre ago | 2

| accepted

Answered
How to replace findpeaks() with another function
<https://nl.mathworks.com/matlabcentral/fileexchange?term=peak+find> Any of these options on the file exchange might help you...

mehr als 3 Jahre ago | 0

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Answered
Function Changem or substitute values of a matrix
|changem| is part of the Mapping toolbox, type ver to see which toolboxes you have installed.

mehr als 3 Jahre ago | 0

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