Community Profile

photo

Ameer Hamza


Last seen: Today

Hong Kong Polytechnic University

2,948 total contributions since 2016

Contact

Ameer Hamza's Badges

  • Scavenger Finisher
  • 6 Month Streak
  • Ace
  • Thankful Level 2
  • CUP Challenge Master
  • Promoter
  • Commenter
  • Explorer
  • Personal Best Downloads Level 2
  • Editor's Pick
  • First Review
  • 5-Star Galaxy Level 1
  • First Submission
  • Knowledgeable Level 4
  • Revival Level 3

View all

Contributions in
View by

Answered
Set of sequnce number
If the number is not very large, then use A = [1,2,3,4,5,6,7,8]; n = numel(A); num = 10.^(n-1:-1:0)*A.'; hex = dec2hex(num);...

2 days ago | 0

Answered
2D colormaps. MxN matrix of RGB values for 4 colors gradient
Try this c{1} = [1 0 0]; % specify 4 colors c{2} = [0 1 0]; c{3} = [0 0 1]; c{4} = [1 0.5 0.2]; C = reshape(vertcat(c{:})...

2 days ago | 0

| accepted

Answered
Queries on the use of "double"
This is probably caused by symbolic preferences on your machines. I guess you have defined x as a symbolic variable before this ...

2 days ago | 0

Answered
Finding minima in data as well as values near it
This will find all the local minima and the points around it. x = [17 12 3 15 46]; idx = islocalmin(x); idx = idx | circshi...

3 days ago | 0

Answered
how to convert this statement into matlab
Assuming all the functions and variables are defined BOOL_TO_REAL(~(PRM_EMS.PRG(p).ignorePwrAux))*EMS.PRG(p).PrcPwrAuxTotal; a...

3 days ago | 0

| accepted

Answered
Is it safe to make academic assignments on MATLAB Online by keeping in mind the plagiarism factor?
Yes, your MATLAB online drive is only accessible to you. No outsider has access to it without your account credentials. Unless y...

3 days ago | 0

| accepted

Answered
Error while generating code using griddedinterpolate in matlab function
griddedInterpolant is still not supported for code generation: https://www.mathworks.com/help/referencelist.html?type=function&c...

3 days ago | 0

| accepted

Answered
Hex to float like python struct.unpack()
This is the correct way hex = 'C956F53D'; x = hex2dec(reshape(hex, 2, []).'); dec = typecast(uint8(x), 'single')

3 days ago | 1

| accepted

Answered
Why is the SSIM value quite low for two same images
The issue is that you are using double() to convert the image to double format. The correct function to use here is im2double()....

3 days ago | 0

| accepted

Answered
How to construct (0,1)-matrices with prescribed row and column sum vectors
Since you are minimizing the dot product, the thing to realize is that this is an integer linear programming problem. Following ...

3 days ago | 0

| accepted

Answered
Calculations on every 2nd row in a matrix in sets of 2 rows
Something like this f = fopen('data.txt'); data = textscan(f, '%f %f', 'HeaderLines', 1); fclose(f); data = [data{:}]; da...

3 days ago | 0

| accepted

Answered
How to create a square wave pulse
If you have signal processing toolbox T = 0.01; % 10 milliseconds timeperiod, 1 square wave in 10 milliseconds t = linspace(0,...

3 days ago | 0

Answered
create a function while protecting it's code
I think you can try to create a mex function using MATLAB coder. It compiles your MATLAB code using C or C++ compiler and conver...

3 days ago | 0

| accepted

Answered
How to do 'less than but not equal to' nonlinear constraints in fmincon?
Numerical optimization algorithms already satisfy constraints with a tolerance value, so the less than (<) or less than equal to...

3 days ago | 1

Answered
Alternative to Save and Load
Try this method: https://www.mathworks.com/help/matlab/import_export/share-memory-between-applications.html. Otherwise, try usin...

3 days ago | 0

Answered
Filling between several curves in a figure using fill or patch functions
See this example y = 1:400; x1 = 0.1*rand(size(y)); x2 = 0.1*rand(size(y))+1; x3 = 0.1*rand(size(y))+0.4; x4 = 0.1*rand(s...

3 days ago | 1

| accepted

Answered
How to rotate a solid with revolute joint
See the attached file for an example.

3 days ago | 0

Answered
Im trying to create two new file function base that will get call in my sqroot function. Im getting all types of errors when i try implementing
Do it like this. Create a file name fun1.m and write following in it function y = fun1(xn, num) f = xn^2-num; end Then ...

3 days ago | 0

Answered
How to zoom in the figure/image/montage without the margin surround it?
Try something like this img1 = imread('pears.png'); imgs = {img1, rgb2gray(img1), imbinarize(img1)}; im = montage(imgs, 'Size...

3 days ago | 0

Answered
I have 2D plot,how shall I make it look like a 3D like a view from top.
Are you trying to get something like this f = figure(); ax = axes(); hold(ax); view(ax, 3); grid(ax, 'on'); x = linspace...

3 days ago | 1

| accepted

Answered
How do I graph an ordinary differential equation with an initial condition?
dsolve() shows that the ODE might not have a symbolic solution. So you will need to resort to a numerical solution. Following sh...

4 days ago | 0

| accepted

Answered
Create script function VDC
Is v constant? In that case, you don't need to call integral(). You can just use VDC=v*(int_sup-int_inf). However, you can fix t...

4 days ago | 0

Answered
Laplace Transform of f(t)=Cos[5t-45^°]
Making a code complex just for the sake of it is a pointless question, especially for this forum. However, the following code sh...

4 days ago | 1

| accepted

Answered
Finding specific number of characters in vector
Try setdiff() c = ['a' 'r' 'y' 'z' 'b' 'u' 'k']; n = numel(setdiff(c, ['b' 'r']));

4 days ago | 0

Answered
Run length encoding error
I didn't understand the logic of your code, but here is an alternate solution. clear all clc data = importdata('Temperature.m...

4 days ago | 1

| accepted

Answered
How i can make heart rate estimation with live webcam ?
This FEX submission seems to be a good starting point: https://www.mathworks.com/matlabcentral/fileexchange/69293-heart-rate-mea...

4 days ago | 0

Answered
Count all green pixels above a threshold and colour them
See this example, this take the green channel of input image, find all pixels above a threshold, and give them red color. img =...

4 days ago | 1

Answered
why purchase optimization vs global optimization toolbox
Yes, you are correct. Therefore, the installation of the Optimization toolbox is a prerequisite for installing the Global Optimi...

4 days ago | 0

| accepted

Answered
Matlab Live script editor font does not respect settings
I think you are typing the code in the "text mode". In "code mode", the appear monospaced.

4 days ago | 0

Answered
Transient Response of an RC circuit
I am not sure, but it seems to be related to the blocks from Specialized Power Library. The blocks from this library are not int...

4 days ago | 0

| accepted

Load more