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How to convert interval from to scalar. The problem is:
Do you mean a loop over a number of interals? k = -0.5:.05:-0.1; %(interval) for i=1:length(k) prob.Objective = k(i) * f...

5年弱前 | 0

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how to convert vector char to matrix char ?
You don't need to do anything. X is already an array. X = 'ABCDEFGHIJKLMNOPQRSTWXYZ' X(2) X(1,2)

5年弱前 | 2

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How can I write a magic(5) matrix to a text file with special delimiters?
x = magic(5); fid = fopen('test.txt', 'w'); fprintf(fid, '%f\n', x); % try different format here fclose(fid) type('test.t...

5年弱前 | 1

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with a function y(x) how can i plot 2y(3-x)
syms x y = piecewise(x<0, 0.1*x^2, x>0, .5*x) g = subs(y, x, 2*x) fplot(g)

5年弱前 | 1

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Does "insertText" not support Chinese fonts? How do I add Chinese fonts to my images?
I = imread('peppers.png'); % Find out the Chinese Fonts installed in your system % listTrueTypeFonts I=insertText(I,...

5年弱前 | 0

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How do I only display the rows for when column 1 is > 0 when I have 4 columns with corresponding data to the first column
a = [-0.00502163330810033 -0.00535602354270113 -0.00175905055456396 -0.00195122013126169 0.0191518806112861 0.02329682192...

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Bubble sort error line 1
You code can run. if you use "input", key in the following "[1 3 2 5 2]" without quotes. %cases = input('Enter cases with [ ] ...

5年弱前 | 0

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How to plot a piecewise function on Matlab?
You can try the another function. syms f(x) f(x) = piecewise(x<=5, 1-sqrt(5-x), 5<x<7, 1, x>=7, 1-sqrt((x-7)/3) ) fplot(f, [0...

5年弱前 | 0

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"Fixed point" binary sequence for values between 0 and 1
% Given x in [0, 1) x = 0.5234567 % Number of bits in binary (bits after .) n = 32; b = dec2bin(x*2.^n, n); b=['0.' b]

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finding the max number?
x=[1 3 5 7] y=x.^2+5 % use .^ here [~, idx] = max(y) % idx the where y is the max x(idx) ...

5年弱前 | 1

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I need to find the length of an array for values > 0
a = [1 2 0 3 -1 2 0]; n = sum(a~=0)

5年弱前 | 0

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Partial pivoting row swapping
a=[1 4 3 5;2 0 2 6;1 1 0 5;1 2 3 4]; b=[5;6;7;10] ab=[a b] for i=1:size(ab, 1)-1 % pivoting [~, imax] = max(abs(ab(...

5年弱前 | 0

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Right align text in subtitle
figure; plot(randn(10,1)) t = title({['\fontsize{14}','First line']; ... ' '}, ... 'FontWeight','Normal'); axPo...

5年弱前 | 0

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m=1:24*(T^-1);
T = 2 % Given a number T T^-1 % T^-1 is 1/T m=1:24*(T^-1) % m is from 1 to 24/T=12 with default step of...

5年弱前 | 0

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What is the easiest way to remove a vector from a matrix?
a = magic(4); a = [a; a(1, :); a]; % 1st 5th and 6th rows are the same a y = a(1, :); % the vector inpu...

5年弱前 | 0

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Issues with contour plot of f(x, y) = x/y.
You just need to remove the level=0 which result in x=0 (not y=0) being plotted. x = -5:.1:5; y = -5:.1:5; [X,Y] = meshgrid(x...

5年弱前 | 0

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reading 10 values randomly from txt file
% Generate the text file n = 200; % 5000 x = randi(100, n,1); fout = fopen('test.tx', 'wt'); fprintf(fout, '%f\n', x)...

5年弱前 | 1

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Can someone please help! I cannot plot this graph.
x=[-0.1:.001:0.1]+eps; % your original x has only 1 point without the step. % In addition, x can be zeros abd the y is not d...

5年弱前 | 0

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Adding sequence of data
a=[1 2 3 4 5 6]'; c = sum(reshape(a, 2, []))

5年弱前 | 0

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Plot date labels in x-axis
xData = ["01/22" "01/23" "01/24" "01/25" "01/26" "01/27" "01/28" "01/29"] yData = [557 655 ...

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How can i create this specific matrix??
i=3; j=4; A = kron(eye(j), ones(1,i))

5年弱前 | 0

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Dynamic colorbar change with window size corresponding with different data area
You can use the callback function of zoom to customize what you want. z = peaks(200); hi = imagesc(1:200, 1:200, z); colorbar...

5年弱前 | 0

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Adjusting width of horizontal colorbar
ax1 = gca; imagesc(peaks(80)) hcb=colorbar('SouthOutside'); ax1Pos = ax1.Position; pos = hcb.Position; pos(4) = 0.5*pos...

5年弱前 | 0

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How to set the order in iircomb filter?
The order of the IIR notch filter (using iircomb) is determined by the number of notches (equal to filter order plus 1). The sa...

5年弱前 | 0

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How to check adjacent data with logical indexing?
A=magic(5) idx1=A>20 idx1_right = circshift(idx1,1,2) idx1_left = circshift(idx1,-1,2) idx2 = idx1 & (A(idx1_left)>18 | A(...

5年弱前 | 0

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How to catch 'not enough input arguments' error?
Use try-catch: try spn=spans(index) catch whos index % show the inforamtion of the variable index disp(index)...

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How can I find a section of a graph?
% plot the curve t = 0:.1:5; x = cos(2*pi*3*(t-2.5))./(1+(t-2.5).^2*2); plot(t, x, 'b-'); % peak around 2.4-2.6 idx = find(...

5年弱前 | 1

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Rectangular Box plotting from four co-ordinate
caustom_plot=plot(x_points([1:end 1]),y_points([1:end 1]),'k','Linewidth',2);

5年弱前 | 0

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I need help to how to solve this
r_shape = [-1 0; 0 -1; 1 0; 0 1]; t_shape = [-0.5 -0.866; 1 0; -0.5 0.866]; plot(r_shape([1:end 1], 1), r_shape([1:end 1], 2)...

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Step response error when using step
Make the system casual (output does not depend on future input) before using step: s=tf('s'); sys=((-1.0024*(s+55.86)*(s+0.498...

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