回答済み
Graph Method Root Finding
E.g., x = -1:0.01:1; % pick some x range to look for a root plot(x,x-2.^(-x)) % plot the equation grid on or fplot(@(x)x-2....

6年弱前 | 0

回答済み
covert 128 binary string into hex decimal
b = your binary digits vector d = [8 4 2 1]*reshape(b,4,[]); h = sprintf('%x',d);

6年弱前 | 3

| 採用済み

回答済み
How to use the three points A1, A2, and B0 to calculate ∠A1B0A2?
A1 = [171 422] ; A2 = [415 413] ; B0 = [277 386] ; d1 = A1-B0 ; d2 = A2-B0 ; theta = atan2( norm(cross([d1 0],[d2 0])), dot...

6年弱前 | 0

回答済み
set order of elseif
Does this do what you want: order = [1 2 3]; % or whatever for k=1:numel(order) switch order(k) case 1 if( ...

6年弱前 | 0

| 採用済み

回答済み
Fields within Cell structures.
E.g., to sort everything by mpg: [~,x] = sort([Car.mpg]); CarMpg = Car(x); To pick off only those with certain constraints, e...

6年弱前 | 0

回答済み
Convert 32 bit image to 8 bit image
I'm assuming you just need to scale things. E.g., X = your image (as a unit32?) Y = uint8( double(X) * ((2^8-1)/(2^32-1)) ); ...

6年弱前 | 1

回答済み
Hex 01A9 to 16-binary?
E.g., if H is not too big: H = '01A9'; B = dec2bin(hex2dec(H),numel(H)*4) Otherwise you will need some form of a loop (explic...

6年弱前 | 0

回答済み
Why getting this error??
Don't shadow the MATLAB min() and max() functions with variables of the same name. Also min() and max() operate on columns by d...

6年弱前 | 1

回答済み
Help me with this task using (Euler`s method)
The function handle is something you only need to create once, before the for-loop starts. Then call that function handle with ...

6年弱前 | 1

| 採用済み

回答済み
Cell Arrays and loops
A cell array uses the curly braces. E.g., MyNames = {'ThisName','ThatName','OtherName'}; The number of elements is simply nume...

6年弱前 | 0

| 採用済み

回答済み
How to write a function handle in vectorized form and avoid an error due to lengthy equation
Your post is inconsistent since it appears to need an even number of columns but you end your example with column 100001, an odd...

6年弱前 | 0

| 採用済み

回答済み
Why does NO ODE function work??
Did you download the code for ode1 from the link provided? https://www.mathworks.com/matlabcentral/fileexchange/54611-solving-o...

6年弱前 | 0

回答済み
Help with creating a for loop
You could take this approach: A = your matrix AA = A*A'; % all of the dot products between rows (more than you need, actually)...

6年弱前 | 0

回答済み
Inexplicable different execution speeds when filling a matrix with complex entries
When an array switches from real to complex in R2018a or later, a new memory allocation and deep data copy must occur to change ...

6年弱前 | 0

回答済み
Error in fzero for solving numerical inverse function
These lines don't do what you think they do syms x g = 1.02*x + 0.6*exp(-8.7*x)-0.292 gx = @(x) g The x in g is symbolic. T...

6年弱前 | 1

回答済み
Code not coming out of if statement.
Sorry for the late reply ... I just saw this post. These lines f1 = @(y) g - sign(y).*cd/m.*y.^2; f2 = @(y) g - sign(y).*(cd...

6年弱前 | 0

回答済み
Runge kutta 4th order
You are using k(j) in your derivative function handles. This is a mistake since it causes the function handles to use the curre...

6年弱前 | 0

| 採用済み

回答済み
How to move elements of vector
Could use a loop on the rows with logical indexing. E.g., vec = whatever z = (vec == 0); for r=1:size(vec,1) vec(r,:) = ...

6年弱前 | 1

| 採用済み

回答済み
Creating vector and matrix from vector
Element-wise multiplication is done with the .* operator (with the dot). E.g., data = Xtrain .* Ytrain; The operation data(:) ...

6年弱前 | 0

| 採用済み

回答済み
How to fill a 3D zeros matrix array
One way: c = arrayfun(@(a)[cos(a), sin(a), 0; -sin(a), cos(a), 0; 0, 0, 1],Tho_t,'Uni',false); result = cat(3,c{:}); Your for...

6年弱前 | 0

| 採用済み

回答済み
plotting one variable function
Your question is unclear. Is it Ri that varies from 2 to 25? And the y-axis and x-axis formulae you have are the coordinates o...

6年弱前 | 1

回答済み
Trying to make a piecewise function that isn't for graphing or using the piecewise function itself
Use logical indexing on both sides of the assignment. E.g., function y = project2Tester(x) y = zeros(size(x)); x1 =...

6年弱前 | 0

| 採用済み

回答済み
The code will turn on the buzzer for 2 sec and then the LED light for 10 sec when someone clap or make a sound higher than 3. Both have to work agin and again only when (s>3)&&(v<1). However, they does not stop even when(s<3)&&(v>1). Any help?
Did you mean elseif (s<=3) || (v>=1) or in fact just else here else

6年弱前 | 0

回答済み
Reshape an Matlab array
A straightforward assignment: A = zeros(7,24); A(:,1:2:end) = reshape(RELOADING_PATTERN(:,1),7,12); A(:,2:2:end) = reshape(RE...

6年弱前 | 0

| 採用済み

回答済み
Why won't my while loop terminate?
The forceErr you are calculating happens for every iteration of the for-loop. The forceErr that the while-loop sees is only for...

6年弱前 | 0

回答済み
Issue with Mexfile in parfor loops
Regarding the inplace modification in MATLAB, here is the actual situation: MATLAB uses a system behind the scenes that is ofte...

6年弱前 | 0

回答済み
Dice with changed probabilites
0.8% is the probability of getting three 3's in a throw of three dice. It is not the probability of the number of three 3's in ...

6年弱前 | 1

| 採用済み

回答済み
Restructuring a Vertex into a specific Matrix pattern
See this function: https://www.mathworks.com/help/matlab/ref/sub2ind.html?searchHighlight=sub2ind&s_tid=srchtitle

6年弱前 | 0

| 採用済み

回答済み
How to deallocate the global memory allocated in the mex function if the program has to be terminated outside of the mex function.
As I understand your question, the general approach would be as follows: Have pointers to your allocated memory be "global", i....

6年弱前 | 1

| 採用済み

回答済み
How to create N+1 dimensional array by taking exterior product of 1st dimension of two N dimensional arrays?
Maybe try this: sizeB = size(B); reshapeA = reshape(A,[1 size(A)]); reshapeB = reshape(B,[sizeB(1) 1 sizeB(2:end)]); C = res...

6年弱前 | 0