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# infinity

##### Last seen: 20 dagar ago
74 total contributions 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.

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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...

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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...

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

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...

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

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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...

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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(:);

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) ...

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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...

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...

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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}_...

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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] =...

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...

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...

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 ...

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...

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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; ...

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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)

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

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...

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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(...

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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...

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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...

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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...

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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...

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...

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...

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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...