Gelöst

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

fast 11 Jahre vor

Gelöst

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,...

fast 11 Jahre vor

Gelöst

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...

fast 11 Jahre vor

Gelöst

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

fast 11 Jahre vor

Beantwortet
I have a matrix which is [y1 x1 y2 x2 y3 x3.......]. The size variable depends on the input, I wanna extract y(i) and x(i) seperately from this matrix.
a=1:10 y=a(1:2:end)' x=a(2:2:end)'

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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; ...

fast 11 Jahre vor | 0

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

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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...

fast 11 Jahre vor | 0

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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)

fast 11 Jahre vor | 0

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

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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')')

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
Write a function getatriangle(R,f,b) that takes the number of rows R and returns a character matrix that has the shape of a triangle filled with the character 'f' on a background filled with the character 'b'.
Hi. R = 20; f = '@'; b = '-'; max_num=2*R-1; fprintf('\n'); for i=1:R S1=repmat(b,[1 R-i]); ...

fast 11 Jahre vor | 0

Beantwortet
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 ...

fast 11 Jahre vor | 0

Beantwortet
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...

fast 11 Jahre vor | 1

| akzeptiert

Beantwortet
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...

fast 11 Jahre vor | 0

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

fast 11 Jahre vor | 0

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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 ...

fast 11 Jahre vor | 0

Beantwortet
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-...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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);...

fast 11 Jahre vor | 0

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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)

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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.

fast 11 Jahre vor | 1

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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])

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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);

fast 11 Jahre vor | 0

Beantwortet
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...

fast 11 Jahre vor | 0

| akzeptiert

Beantwortet
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>

fast 11 Jahre vor | 0