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Calculating Value of Inverse function
syms x g = finverse(x.^2./(1+sqrt(x)),x); % x = 2; f = @(x) g; disp(f(2))

3年以上前 | 0

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How to set x axis limit while using semilogx
T1 = [1 10 100 1000 10000] % x values T2 = [0.1 10 100 1000 10000] % x values Y = [0 1 4 7 10] semilogx(T1, Y,T2, Y) axis([0...

3年以上前 | 0

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trying to convert the answers for T2 into an array for min and max values
betad = 0:30:180; betar = deg2rad(betad); T2array = zeros(2,numel(betar)); for k = 1 : length(betar) Beta = betar(k); ...

3年以上前 | 0

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I am trying to plot this problem but can not get the exact result.whats wrong with this.
E=100*cos(3*1e8*t+k_y*y+k_z*z) % 1e8 plot(y,E,'linewidth', 2);grid on;

3年以上前 | 0

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how do I store the values of the equation from a for loop in a matrix, each run being the following row?
y = 0; n = 1; imax = 9; a = zeros(imax,1000); a(1,:) = y; x = linspace(0,2,1000); for i=1:imax y = y + (1/n * sin(n*2...

3年以上前 | 0

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How can you extend a vector with the last value?
X = rand(1,5) A = rand(1,3) Anew = [A repmat(A(end),1,size(X,2)-size(A,2))]

3年以上前 | 0

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Using a while loop to solve a Taylor Series with approximate values.
f = atan(1); n = 0; i = -1; err_approx = 100; while (err_approx >= .5) % check the condition here i = i + 2; ...

3年以上前 | 0

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Torque of a turbine using Euler's equation
clc; clear all; % T = pQ(r1V1cosa1 - r2V2cosa2) % Alpha is the angle between turbine linear % velocity and absolute p = 1.9...

3年以上前 | 0

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linspace is causing an error
n2 = [1.2 1.75 2.2]; D = linspace(0,1,100); for k = 1:length(D) T(:,k)= (9.68.*n2.^2)./(11.6964.*n2.^2)+(1-n2.^2).*(5.8564-n2...

3年以上前 | 1

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How to setting one horizontal axis for 2 subplot?
subplot(3, 1, 1:2); plot(rand(10, 1), 'b.-', 'LineWidth', 2); xticks(1:10) grid on; xticklabels({}) subplot(3, 1, 3); plot...

3年以上前 | 0

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How do I solve this please? Write a function called 'corners' that takes a matrix as an input argument and returns four outputs
C = randi([2 10],4) % give this as input in >> command window [top_left, top_right, bottom_left, bottom_right] = corners(C) ...

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How to create a plot for multiple CSV files in a loop?
textscan(fid,'Delimiter',',','Headerlines',12)

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I do not understand why this script {8/2<5*3+1>9} with logical operators gives NO (0)?
Matlab evaluates the expression from left to right, If you start with numbers from left to right in your expression, it will fir...

3年以上前 | 2

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How to input new value as old value using while loop to compute relative error?
r_e = abs((p-p_old)/(p));

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Insert a figure in a report on Web Apps
add(rpt,figure(f1)) Pass the function handle for figure with smallcase

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How can I plot the fourier series of a rectangular pulse by calculating the coefficients?
close all; clear; clc; N = 2; f = @(x) rectangularPulse(-1,1,x); x = -2:0.001:2; %2*p is the period p = pi; % the main fun...

3年以上前 | 0

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Solving an equation with multiple values
f1 = ((2*69*0.3)./(pi*a))*0.5;

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Loop for end before it should
f = 1 g = 2 for i = 1:(length(nb)) %length(nb) represent the number of items selected in the first listbox myExcel = actxserv...

3年以上前 | 0

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Can Someone help me solve what is wrong with this code
%syms CP Comment this line and try as CP is symbolic. Then you get know whether it's maximum or minimum

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How to replace values of a variable in a table (in a cell) with nan?
mycell{5, 1}(1,1).myvariable = nan;

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how we write summation with loop
xl=0; xr=1; %domain[xl,xr] ...

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Draw vertical lines which have constant interval
P=[1:432] original_form = load('original_time.mat') time = datetime(original_form.t,'ConvertFrom','datenum') plot(time,P); ...

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Help with a bifurcation diagram plot
lambda = linspace(0,125,100) xt = linspace(-0.1,5,100)

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Index exceeds the number of array elements. Index must not exceed 20. Error in lumped_vortex_parabolic_camber (line 54) dx = xcollocation(i) - xvortex(k);
for i = 1 : 1 : Npanel % change In the first case you used this. But look at the 2nd for loop why you changed to 2*Npanel....

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Moving Decimal Places to the right
format long % format long option sprintf('%6f',1.412701202025964e+09)

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fprintf with warning of a lone trailing backslash
folderName = strcat(rootFolder,filesep,timeSteps(m+2).name); fprintf(['\nProcessing folder %s', folderName]); You need ...

3年以上前 | 1

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I dont get why I am encountering an error message when running this code.
%v_t=20; %v_i=1; %g=10; %expo1=-2*g*t./v_t; %expo2=-2*g*t./v_i; %function I want to integrate and plot:v_t*(1-exp(expo1)+v_...

3年以上前 | 0

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code no good :(
clc,clear all %% Load Data - Initilize Variables DP980TD_S2 = xlsread('DP980TD-S2.xlsx'); % Data File % Constants widthO...

3年以上前 | 0

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How can I get the value by choosing 't' and 'x'? ,How should I set the graph range?
L = 30; n = 10; T0=500; T1s=300; T2s=400; dx=L/n; alpha=0.000085; t_final=4800; dt=300; % use a coarse timestep ...

3年以上前 | 0

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Using nested FOR() loops to populate a matrix
% MacLaurin Series of e^x format longG % define vector to hold series x values X = 0 : 0.01 : 1; % Create matrix to co...

3年以上前 | 1

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