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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...

6 maanden 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 maanden 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...

meer dan 2 jaar 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...

bijna 3 jaar ago | 0 answers | 0

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answersApply 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...

meer dan 3 jaar 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...

meer dan 3 jaar ago | 0

| accepted

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 ...

meer dan 3 jaar 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 = ...

meer dan 3 jaar ago | 0

| accepted

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) ; ...

meer dan 3 jaar ago | 0

| accepted

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...

meer dan 3 jaar 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

meer dan 3 jaar ago | 1

| accepted

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...

meer dan 3 jaar 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, ...

meer dan 3 jaar 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...

meer dan 3 jaar 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...

meer dan 3 jaar 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...

meer dan 3 jaar 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...

meer dan 3 jaar 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...

meer dan 3 jaar 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 ...

meer dan 3 jaar ago | 0

| accepted

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...

meer dan 3 jaar 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...

meer dan 3 jaar 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 = @...

meer dan 3 jaar ago | 0

| accepted

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...

meer dan 3 jaar 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...

meer dan 3 jaar 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)...

meer dan 3 jaar 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...

meer dan 3 jaar ago | 1

| accepted

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)...

meer dan 3 jaar 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 "\"...

meer dan 3 jaar ago | 2

| accepted

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...

meer dan 3 jaar ago | 0

| accepted

Function Changem or substitute values of a matrix

|changem| is part of the Mapping toolbox, type ver to see which toolboxes you have installed.

meer dan 3 jaar ago | 0