# infinity

Last seen: 4 years ago Active since 2019

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Integration of a function.
Hello, You just need to remove "." in the formulation of I2, I3, fun2 and fun3. The code will run withour errors.

5 years ago | 1

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Combination of sub-matrices generated within a for loop
Hello, There are various solutions for this question, one of the closet one to your current code could be clear; clc; clos...

5 years ago | 0

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Using different colours in a quiver plot
Hello, My suggestion is that you plot the first figure for the vectors that have magnitude less than 1.0 (using blue color) the...

5 years ago | 0

How to plot axial velocity profiles
Hello, You can refer this code z = [0,9.99999953400000e-05,0.000219999991200000,0.000363999986200000,0.000536799977600000,0....

5 years ago | 1

Removing Points Along a Diagonal Line
Hello, I would suggest you a solution, Since you have known two points of slope, which are (40,35) and (74.4, 15), you can e...

5 years ago | 0

Legend label - differential dot above letter with a subscript
Hello, How about this name = legend('$\dot{X}_{Piston}$'); set(name,'Interpreter','latex');

5 years ago | 2

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Exponential decay extrap to y=0
Hello, You could try this clear close all x0 = linspace(0,100,100); x = [0;10;20;30;40;50;60]; %time in minutes y = [12...

5 years ago | 0

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I am unable to store values for every iteration, values are overwritten in each iteration.
Hello, Try this fr{Fr} = frame(:);

5 years ago | 0

Circle rotating and whirling
Hello, You can also refer this code, close all t = linspace(0,2*pi); x = cos(t); y = sin(t); r1 = 3; plot(r1*x,r1*y) ...

5 years ago | 0

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Finding eigen vectors of a matrix
Thank for @Rik 's comment. I have moved my comment to this section. Since Matlab response with these lines Error using eigs...

5 years ago | 1

How do you update the legend of Figure 2 instead of Figure 1?
Hello, In the code of figure 2, you should change a bit like this figure Class1_Synthetic = scatter(SLClass1_Normalized,PWCl...

5 years ago | 1

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Interpreter latex label problem
Hello, The error come from the typing of latex syntax. You should change a bit in your latex, for example ylabel('\$R_{{m}_...

5 years ago | 0

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Splitting based on delimiter but only once
Hello, You can refer this idea to extend you the case of longer string clear input = 'Country ˈk ʌ n t r i'; [val,idx] =...

5 years ago | 0

Assembling global stiffness matrix
Hello, I have taken a look in your code, I relize that in each element there are four nodes and each node has two degree of fr...

5 years ago | 1

question about how to plot a for loop in matlab
Hello, Try to put plot inside the loop for Fn=0.1:0.01:10; Mg=abs((Ln*Fn*Fn)/(((Ln+1)*Fn*Fn-1)+((Fn^2-1)*Fn*Qe*Ln)*i)) plo...

5 years ago | 0

polar plot to create circular shape with varying radius
Hello, How about if you change a bit like this clear close all % k = round(rand(1,50)*10)+10; k = round(rand(1,50)); Th ...

5 years ago | 0

How to solve matrix equation for variable inside a summation? Analytical or numerical.
Hello, There are several ways that you can apply. Here, I just show you an example how to solve this problem by using solve fu...

5 years ago | 1

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Regarding the matrix indexing,
Hello, How about if you modify your function like this function T = Euler_explicit(T_0, L, P,C, h) A = inv(C)*L; ...

5 years ago | 0

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Finding the nonzero element in a specific row
Hello, Yes, there is. You can refer this simple example A = [1 2; 0 3] [rows,cols,vals] = find(A==0)

5 years ago | 0

How to select numbers?
Hello, You can simply type F = rand(3) M = rand(3) result = F(F<M)

5 years ago | 1

Result of FEA does not change, on changing the Material properties with same load
Hello, I have run your code, results were not constants when parameters had changed. For example, if you set "PR" (poisson r...

5 years ago | 0

| accepted

Calculating time duration of a signal
Hello, You also could refer this code to get the output clear signal=[0 0 0 1 1 1 1 0 1 1]; n = length(signal); a = diff(...

5 years ago | 1

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make the for loop run faster
Hello, How about if you try to use this time = 1:100; T0 = 0; sunrise = 10; Tmin = 1; Tmax = 100; Tmax_time = 50; suns...

5 years ago | 0

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While solving boundary value problems (using bvp4c) the graph is plotted as the command ""plot (x,BS(1,:))"" but if I want the graph between x and y and not x and boundary solution (BS) what should I do ?
Hello, You might simply plot x and y like this plot(sol.x, sol.y, '-o') Several examples of how to use bvp4 and deval can b...

5 years ago | 0

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How to integral a composite function in yalmip?
Hello, You define z as a function of x1, x2, and u1. But, you apply the integral function to compute the integral of z over th...

5 years ago | 0

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How to draw cumulative histogram?
Hello, You shoud do some tasks to approximate cumulative probability from your data. Then you just plot it. Below, will be a r...

5 years ago | 0

Combining two sets of data into a singular array
Hello, How about if you can combine into matrix with many column like this for ii=1:5 time=randn(5,1); data1=randn(5,1); c...

5 years ago | 0

Calculate minimum distance between point and steady but NON differentiable function
Hello, There is two options that you can think Assume we have a point P(xp, yp) and a function f(x) that we may not have der...

5 years ago | 0

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Go back to initializing values using for loop when condition is not met
Hello, There are several ways, one approach that you can use as follows clear n = 100; x = zeros(1,n); y = zeros(1,n); fo...

5 years ago | 1

| accepted