Interested in external applications, mex & engine applications with Fortran, C, C++, etc, particularly in the areas of speed improvement and memory management efficiencies.

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How to find an explicit function when using Runge-Kutta or one of the pertinent codes in Matlab (ode45)

Symbolic Toolbox doc dsolve https://www.mathworks.com/help/symbolic/dsolve.html

How to find an explicit function when using Runge-Kutta or one of the pertinent codes in Matlab (ode45)

Symbolic Toolbox doc dsolve https://www.mathworks.com/help/symbolic/dsolve.html

약 1시간 전 | 0

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Extracting parts of matrix for sub matrices

E.g., to put them into a cell array mat = your matrix result = mat2cell(mat,repmat(16,8,1),repmat(16,8,1));

Extracting parts of matrix for sub matrices

E.g., to put them into a cell array mat = your matrix result = mat2cell(mat,repmat(16,8,1),repmat(16,8,1));

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Exact probability of a triangular distribution

The exact probability of getting a number greater than the mean is simply the sum of the probabily to the right of the mean. Si...

Exact probability of a triangular distribution

The exact probability of getting a number greater than the mean is simply the sum of the probabily to the right of the mean. Si...

약 2시간 전 | 1

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I want to rotate a point using Quaternion function

I took a look at this related link: https://github.com/petercorke/robotics-toolbox-matlab/blob/master/Octave/%40Quaternion/Quat...

I want to rotate a point using Quaternion function

I took a look at this related link: https://github.com/petercorke/robotics-toolbox-matlab/blob/master/Octave/%40Quaternion/Quat...

약 4시간 전 | 0

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Converting sensor frames using Aerospace Toolbox

This discussion on MATLAB quaternion convention might help you: https://www.mathworks.com/matlabcentral/answers/465053-rotation...

Converting sensor frames using Aerospace Toolbox

This discussion on MATLAB quaternion convention might help you: https://www.mathworks.com/matlabcentral/answers/465053-rotation...

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Problems with sortrows and str2double, why is it still string?

>> [~,x] = sort(str2double(Respiration_Values)); >> B = Respiration_Labelled(x,:) B = 7×2 string array "139299" "...

Problems with sortrows and str2double, why is it still string?

>> [~,x] = sort(str2double(Respiration_Values)); >> B = Respiration_Labelled(x,:) B = 7×2 string array "139299" "...

약 5시간 전 | 1

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error when running a function

Do not push the green triangle "go" button in the editor since that calls the function without any input arguments. Instead, cal...

error when running a function

Do not push the green triangle "go" button in the editor since that calls the function without any input arguments. Instead, cal...

약 23시간 전 | 1

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solving a set of differential equations with ode45

Initial conditions is a 4-element vector: IC1=[0; 0; 298; 298]; But in your derivative function you have this: M=[5,15,25,55]...

solving a set of differential equations with ode45

Initial conditions is a 4-element vector: IC1=[0; 0; 298; 298]; But in your derivative function you have this: M=[5,15,25,55]...

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Loops - physics - nonlinear gravity & acceleration

Your immediate problem is that h is a vector, so the right hand side of this statement is a vector: g(i+1)=(400000000/(6371+h...

Loops - physics - nonlinear gravity & acceleration

Your immediate problem is that h is a vector, so the right hand side of this statement is a vector: g(i+1)=(400000000/(6371+h...

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Looping over column and returning values where conditions are met

In general, perform find( ) on the condition you want. E.g., find(matrix(:,4)>80) would return the row numbers where the 4th c...

Looping over column and returning values where conditions are met

In general, perform find( ) on the condition you want. E.g., find(matrix(:,4)>80) would return the row numbers where the 4th c...

1일 전 | 0

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sparse half-precision matrices

The sparse format in MATLAB only supports double and logical data types. To use any other data type you would have to write all...

sparse half-precision matrices

The sparse format in MATLAB only supports double and logical data types. To use any other data type you would have to write all...

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RK4/AB4, need help with correct code for 2 second order equations in Matlab

So, first define a 4-element state vector. To keep the nomenclature the same as the MATLAB docs, I will use the variable name y....

RK4/AB4, need help with correct code for 2 second order equations in Matlab

So, first define a 4-element state vector. To keep the nomenclature the same as the MATLAB docs, I will use the variable name y....

2일 전 | 0

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Cell Arrays and Indexing?

This is the reverse of your last assignment. It needs only one loop over the number of rows, and the cell array element for tha...

Cell Arrays and Indexing?

This is the reverse of your last assignment. It needs only one loop over the number of rows, and the cell array element for tha...

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Cell arrays and Indexing with Cells HELP?

This row = Q(1:end); col = Q{1:end}; Z(row, col) = true; is actually a good attempt and shows you understand the problem .....

Cell arrays and Indexing with Cells HELP?

This row = Q(1:end); col = Q{1:end}; Z(row, col) = true; is actually a good attempt and shows you understand the problem .....

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repeat the iteration with an error using try/catch

Maybe this construct does what you want while( true ) try MyProgramHere ...

repeat the iteration with an error using try/catch

Maybe this construct does what you want while( true ) try MyProgramHere ...

3일 전 | 0

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Storing doubles in the smallest integer class for which they fit without changing their value?

Some hints: Don't use loops, use vectorized code to figure out which integer size works. intmax(type) gives you the largest va...

Storing doubles in the smallest integer class for which they fit without changing their value?

Some hints: Don't use loops, use vectorized code to figure out which integer size works. intmax(type) gives you the largest va...

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How do I make a function work with vectors?

Use element-wise divide operator ./ (with the dot) instead of the matrix divide operator / (without the dot). E.g., tanH(x)=((...

How do I make a function work with vectors?

Use element-wise divide operator ./ (with the dot) instead of the matrix divide operator / (without the dot). E.g., tanH(x)=((...

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Question already answered - ODE solving use RK4

Your basic problem is that you have two states, x and y, but your function arguments are inconsistent with this. Take this code:...

Question already answered - ODE solving use RK4

Your basic problem is that you have two states, x and y, but your function arguments are inconsistent with this. Take this code:...

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Really! fprintf cell error

What happens if you change this fprintf(fid, '%d %s %s %f',shape{i,:}); to this fprintf(fid, '%d %s %s %f',shape{i,1},shape{i...

Really! fprintf cell error

What happens if you change this fprintf(fid, '%d %s %s %f',shape{i,:}); to this fprintf(fid, '%d %s %s %f',shape{i,1},shape{i...

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MATLAB Homework Problem: "Incorrect use of '=' operator" in a for loop

This: for (i = 2:0.5:15 && j = -2:0.5:12) Needs to be two nested loops: for i = 2:0.5:15 for j = -2:0.5:12

MATLAB Homework Problem: "Incorrect use of '=' operator" in a for loop

This: for (i = 2:0.5:15 && j = -2:0.5:12) Needs to be two nested loops: for i = 2:0.5:15 for j = -2:0.5:12

4일 전 | 1

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Homework help.(User defined functions )

Hint: See these functions: doc size doc isequal doc error

Homework help.(User defined functions )

Hint: See these functions: doc size doc isequal doc error

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trouble understanding for loops

The first problem is getting the input from the user. This assigns a char string to pv: pv=('What was your original mortgage v...

trouble understanding for loops

The first problem is getting the input from the user. This assigns a char string to pv: pv=('What was your original mortgage v...

4일 전 | 0

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OR statement in a while Loop

Change to AND: while ((playerhp > 0) && (enemyhp > 0)) I.e., you only do the while loop when both hp are positive. It eit...

OR statement in a while Loop

Change to AND: while ((playerhp > 0) && (enemyhp > 0)) I.e., you only do the while loop when both hp are positive. It eit...

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Fastest way to find the row number containing the most amount of black pixels in a gray-scale image?

[~,row_blackPix] = max(sum(image <= 20,2))

Fastest way to find the row number containing the most amount of black pixels in a gray-scale image?

[~,row_blackPix] = max(sum(image <= 20,2))

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Varying step size for RK Method?

The only variable that depends on a new n is h, so only recalculate h and then run your loop as is. Although if you want to make...

Varying step size for RK Method?

The only variable that depends on a new n is h, so only recalculate h and then run your loop as is. Although if you want to make...

5일 전 | 0

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conversion from base 13 to IEEE 754

For the base 13 conversions: doc dec2base doc base2dec https://www.mathworks.com/help/matlab/ref/dec2base.html https://www.m...

conversion from base 13 to IEEE 754

For the base 13 conversions: doc dec2base doc base2dec https://www.mathworks.com/help/matlab/ref/dec2base.html https://www.m...

5일 전 | 0

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Whats wrong with my code? Taylor series Approx with error

You probably just need an absolute value error = abs((true-s)/true)*100; %Percent Error Formula That being said, true and erro...

Whats wrong with my code? Taylor series Approx with error

You probably just need an absolute value error = abs((true-s)/true)*100; %Percent Error Formula That being said, true and erro...

6일 전 | 0

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Functions and For Loops For Polynomials

Some guidance: 1) The sum=0 part needs to be moved outside the loop, prior to the loop starting. The way you have it the sum re...

Functions and For Loops For Polynomials

Some guidance: 1) The sum=0 part needs to be moved outside the loop, prior to the loop starting. The way you have it the sum re...

6일 전 | 1

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