解決済み

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

12年弱前

解決済み

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,...

12年弱前

解決済み

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...

12年弱前

解決済み

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

12年弱前

回答済み
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)'

12年弱前 | 0

| 採用済み

回答済み
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; ...

12年弱前 | 0

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

12年弱前 | 0

| 採用済み

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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...

12年弱前 | 0

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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)

12年弱前 | 0

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

12年弱前 | 0

| 採用済み

回答済み
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')')

12年弱前 | 1

| 採用済み

回答済み
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]); ...

12年弱前 | 0

回答済み
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 ...

12年弱前 | 0

回答済み
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...

12年弱前 | 1

| 採用済み

回答済み
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...

12年弱前 | 0

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

12年弱前 | 0

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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 ...

12年弱前 | 0

回答済み
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-...

12年弱前 | 0

| 採用済み

回答済み
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);...

12年弱前 | 0

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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)

12年弱前 | 0

| 採用済み

回答済み
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.

12年弱前 | 1

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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])

12年弱前 | 0

| 採用済み

回答済み
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);

12年弱前 | 0

回答済み
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...

12年弱前 | 0

| 採用済み

回答済み
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>

12年弱前 | 0