Risposto
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...

quasi 3 anni fa | 0

Risposto
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)

quasi 3 anni fa | 2

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Risposto
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...

quasi 3 anni fa | 1

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Risposto
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)

quasi 3 anni fa | 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,...

quasi 3 anni fa | 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...

quasi 3 anni fa | 0

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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 [ ] ...

quasi 3 anni fa | 0

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Risposto
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...

quasi 3 anni fa | 0

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Risposto
"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]

quasi 3 anni fa | 0

Risposto
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) ...

quasi 3 anni fa | 1

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

quasi 3 anni fa | 0

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Risposto
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(...

quasi 3 anni fa | 0

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

quasi 3 anni fa | 0

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Risposto
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...

quasi 3 anni fa | 0

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Risposto
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...

quasi 3 anni fa | 0

Risposto
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...

quasi 3 anni fa | 0

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Risposto
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)...

quasi 3 anni fa | 1

Risposto
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...

quasi 3 anni fa | 0

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

quasi 3 anni fa | 0

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Risposto
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 ...

quasi 3 anni fa | 0

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

quasi 3 anni fa | 0

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Risposto
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...

quasi 3 anni fa | 0

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

quasi 3 anni fa | 0

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Risposto
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...

quasi 3 anni fa | 0

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Risposto
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(...

quasi 3 anni fa | 0

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Risposto
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)...

quasi 3 anni fa | 0

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Risposto
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(...

quasi 3 anni fa | 1

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

quasi 3 anni fa | 0

Risposto
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)...

quasi 3 anni fa | 0

Risposto
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...

quasi 3 anni fa | 0