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First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

bijna 11 jaar ago

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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

bijna 11 jaar ago

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Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

bijna 11 jaar ago

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

bijna 11 jaar ago

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Maclaurin Series function in matlab
function Maclaurin n=5; x=input('enter the x value: '); epsilon_s=(0.5*10^(2-n)); epsilon=100; maclaurin(1)=1; ...

bijna 11 jaar ago | 0

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Elementwise multiplication, function definition
[x, y] = meshgrid(linspace(0,400,400),linspace(0,30000,400)); A1 = -8.269000000000000; m1 = 2.071000000000000; m2...

bijna 11 jaar ago | 0

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Failed to add uniform noise to the image
Hi. You don't need imnoise: round(128+0.2)=128 with 0.1 and 0.2 like you didn't add any noise. Uniform noise with zero m...

bijna 11 jaar ago | 0

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could you fix these codes?
Hi. Use cell array: I=imread('moon.tif'); C=mat2cell(I(1:32,1:32),8*ones(1,4),8*ones(1,4)); imshow(C{5},'InitialMagni...

bijna 11 jaar ago | 0

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problem with ssim function
Hi. It's default window: window = fspecial('gaussian', 11, 1.5); If input images has smaller size than 11*11 (it's windo...

bijna 11 jaar ago | 0

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Create an anonymous function after Symbolic differentiation
Hi. syms x f=@(x) x^3+3*x+1; g=diff(f(x)) h=@(y) subs(g,y)

bijna 11 jaar ago | 0

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Troubles with modeling step response in Simulink
Delete your Integrator block, you didn't define it in your code.

bijna 11 jaar ago | 0

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From four different numbers, how can I find out the minimum and maximum numbers that can created from the digits?
Hi. A=7465; A=num2str(A)'; Minimum=str2num(sort(A)') maximum=str2num(sort(A,'descend')')

bijna 11 jaar ago | 1

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Subscript indices must either be real positive integers or logicals.
Hi. Use another name for your variable 'sin'. When you use it as a variable,then you can't use it as sinusoid function: fs ...

bijna 11 jaar ago | 0

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built-in 2D convolution vs for-loop convolution differences?
Hi. You need to rotate your kernel 180 degree: x = 0:.1:pi; A = rand(100,100); M = sin(x).^2'*sin(x).^2; figure(1...

bijna 11 jaar ago | 1

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How to output specific matrix component to excel?
Hi. Convert it to two dimensional, then use xlswrite: a=rand(3,3,4000); a1=a(1,1,1:500); a2=a1(:); xlswrite('Matla...

bijna 11 jaar ago | 0

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symbolic differentiation with multiple variables/parameters
See: doc matlabFunction Help: When converting symbolic expressions, the order is alphabetical.When converting symbolic ...

bijna 11 jaar ago | 0

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Sum an array in one dimension to calculate the probability
Hi. A(:,:,1) =[0.4528 0.0477 0.0715;0.0220 0.0023 0.0035;0.0045 0.0005 0.0007;0.0511 0.0054 0.0081]; A(:,:,2) =[0.0129 0...

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How to assign a column vector a name in a matrix while processing multiple files (loop)?
Hi. What is the variable name that you want to calculate its 4th column average? if the name of the variable is the same in all ...

bijna 11 jaar ago | 0

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What is going wrong with my mesh command?
Hi. clear [x,y]=meshgrid(-10:0.1:10) d=max(sqrt(x.^2+y.^2),sqrt((x-5).^2+(y+1).^2)); d=max(d,sqrt((x-4).^2+(y-...

bijna 11 jaar ago | 0

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How to run this MATLAB codes in R-Programming?
Hi. function y=calcul(n,t) for j=1:t for i=1:100 [yy,i1]=fungi(n,j); point(i)=yy(j+1);...

bijna 11 jaar ago | 0

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how can i color the particular block of the image?
Hi. clear grayImage=imread('cameraman.tif'); blockNumber = 34; blockSizeC=32; blockSizeR=32; blockrows =8; b...

bijna 11 jaar ago | 0

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how to find the length of characters stored in cell array?when each column contains words of different length?
Hi. a={'issue', 'information', 'books','subject'} L=cellfun(@length,a)

bijna 11 jaar ago | 0

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Attempted to access x(2); index out of bounds because numel(x)=1. But I'm using a matrix?
Hi. You change your x in first loop : x = x(i) ====> x=22.5 after this x became a number.

bijna 11 jaar ago | 1

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How to draw this figure?
Hi. m=0.5; [x,y]=meshgrid(-11:.1:11); d=sqrt(x.^2+y.^2); S=d; S(d>10)=0; S(d<=10&d>5)=exp(-0.5.*(d(d<=10&d>5...

bijna 11 jaar ago | 0

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Answered
Error using imread (line 368) ; File "..." does not exist
Hi. change your current folder to myFolder: cd(myFolder) or use this: im1 = imread([myFolder pngfiles(1).name])

bijna 11 jaar ago | 0

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Answered
Take mininum over only two dimensions of 4-d array
Hi. R=reshape(1:16,[2 2 2 2]); M=min(min(R,[],4),[],3);

bijna 11 jaar ago | 0

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Call functions with names generated from strings
Hi. fluid.muO=@(p) p.^2+1; fluid.muW=@(p) cos(p)+2*sin(p); phase = 'O'; name = strcat('fluid.mu',phase);%['fluid.m...

bijna 11 jaar ago | 0

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Is it wrong if PSNR is coming IN range of 128 - 170
Hi. It's not wrong, but it's unusual: <http://en.wikipedia.org/wiki/PSNR>

bijna 11 jaar ago | 0

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