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Newmark-Beta in dynamic analysis for solving nonlinear stiffness matrix problem
clear all clc % Define parameters n = 3; % Number of degrees of freedom m = eye(n); % Mass matrix (identity matrix for simpl...

oltre 2 anni fa | 1

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How to modify the code to compute data on multiple inputs?
theta = [15 30 45]; for i = 1:227 % size(vp,2) for k = 1:length(theta) data{i,k} = fwmod_vpvsrho(vp(:,i),vs(:,...

oltre 2 anni fa | 0

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How to control pitch angle?
This link can be helpful for your question <https://in.mathworks.com/help/control/ug/wind-turbine-control-design.html>

oltre 2 anni fa | 0

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Tangent Line and Normal Line
f(x) = x^3 - 3*x + 2 instead of f(x) = 3^x - 3*x + 2

oltre 2 anni fa | 2

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Put letters as markers in a legend box
Use combination of LineStyle and Markers if you have lot of data series to represent in plot. Hopefully, legend box will not h...

oltre 2 anni fa | 0

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Minimum value from a vector for x in the range: x= [-4:0.5:4]; Calculate f(x)=x2+1.3x+2.
x = -4:0.5:4; f = @(x) x.^2 + 1.3*x + 2 [F idx] = min(f(x)) xv = x(idx) % value of x at which minimum of f(x) occurs

oltre 2 anni fa | 0

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error: Array indices must be positive integers or logic
y(i) = y(i) + 1; instead of y(II) = y(II) + 1;

oltre 2 anni fa | 0

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index problem while sort
Here is another way to get the indices without overhead of using ismember function Omega=[1.528 -1.528 0.792 -0.792]; [NN,ind]...

oltre 2 anni fa | 2

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How to apply for loop in case of product of function inside double summation?
R = 0:1; a = 1:10; b = -10:10;% define values for i = 1:length(R) for j = 1:length(R) pr_1(i,j) = a(i)*b(j);...

oltre 2 anni fa | 1

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How to find a specific number in a specific column in an excel file and how many times it occurs
D = readtable('test.xlsx'); rowsIndex = D.T == -1100; requiredRows = D(rowsIndex, :)

oltre 2 anni fa | 0

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Matlab is not giving the correct z transform of - (n*a^n)*u[- n - 1];
syms n z a; y = (n*a^n)*heaviside(n+1) %... heaviside is supposed to be the unit function but apparently it's not working. yz ...

oltre 2 anni fa | 1

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Turning string into a variable name for a function to use
As the error states, input arguments must be table, you need to either convert the f2load into table using table function or pas...

oltre 2 anni fa | 0

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How to display contour levels for some specific levels
Do you mean like this ? Z = peaks; figure [C,h] = contour(Z,8); v = [-1.6727, -0.0448059, 0.0648059, 3.6634] clabel(C,h,v)...

oltre 2 anni fa | 1

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Why ist the Amplitude of the PSD lower than expected?
Hi @Linus Trauberg From the graph it appears there is a shift in the frequency range returned by pwelch as against to data tha...

oltre 2 anni fa | 0

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Function 'contains' did not work
if you use compose function nstead of num2str then contains works correctly, clear s1 = 1:100; s2 = [50 51]; s1str=c...

oltre 2 anni fa | 1

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Making the last two plots in a subplot have an x-axis in degrees?
clear ; clc ; x = linspace(-2,2,51) ; y1 = sinh(x).^2 ; y2 = tanh(x).^2 ; subplot(2,2,1) ; plot(x,y1,'s--r','LineWidth',2,'M...

oltre 2 anni fa | 1

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How to plot a given vector field A(x y,z)=(-y)x hat + ( x) y hat + (0) z hat in x y plane .I tried this code but getting an error
% Define the vector field A(x, y, z) = (-y)x_hat + (x)y_hat + (0)z_hat syms x y z A = [-y*x, x*y, 0]; xx = linspace(-2, 2, 2...

oltre 2 anni fa | 1

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scientific notation convertion of coefficients of a polynomial
syms x f = - 0.042440155 + 0.29476113*x + 0.47380563*x^2 - 0.17632127*x^3 + 0.038426007*x^4 - 0.005090693*x^5 + ... 0.0007...

oltre 2 anni fa | 0

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Error in the anonymous function
% Define A as a 1x24 vector AA = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, ... 21, 22, 23, ...

oltre 2 anni fa | 0

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Help with the equation
Check whether the density input is correct or not to get a value of 4.5 forTBAL syms T_BAL Rho =1.225; % density ?? % stan...

quasi 3 anni fa | 0

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How can I make it so that the value from my slider changes the rotation speed of the ferris wheel in my code?
Delete the return value for sliderCallback function call as shown below and put the while and/or for loop code for the animat...

quasi 3 anni fa | 1

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SWITCH expression must be a scalar or a character vector. Error in pathplaninglaila (line 17) switch mode
The mode variable used for the switch expression needs a character data type. you need to convert that variable to char mode as...

quasi 3 anni fa | 0

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Give me an example of a calling function.
Put the prog2 code in a function file (which returns the value of n) and call that function in prog1 script file as shown below ...

quasi 3 anni fa | 0

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Replace strings with a different string and save the data
D = readtable('data.txt'); C = char(['40% Fe';'30% Al']) % e.g. element data to be filled in 1st column D.(1) = repmat(C,168/2...

quasi 3 anni fa | 0

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Operator '>' is not supported for operands of type 'cell'.
T is a table array/datatype, and you try to access variable inside the table with same name , this is not valid operation idx =...

quasi 3 anni fa | 0

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how to extract roots of equation
syms w N k1=70; k2=200; m1=0.1; m2=0.064; m3=0.04; r=0.25 M1=(m2+m3)/m1; M2=m2/m1; K=k2/k1; wn1=(sqrt(k1/m1))/(2*...

quasi 3 anni fa | 0

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solving beam deflection curve
if you use linspace function, it divides the length between initial and final points into non-equispaced values, however if you...

quasi 3 anni fa | 1

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Save file .txt the same name as loaded file
filename = "XRF3.mat"; load(filename) save(filename)

quasi 3 anni fa | 0

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Finding a definite integral
u and k are both functions of x. But I only know the values of u and k at some points of x. you can interpolate missing values ...

quasi 3 anni fa | 0

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MATLAB does not print vector file even with renderer specified
how about image format ? print('-image','a1.eps','-depsc')

quasi 3 anni fa | 0