Answered
Velocity,Acceleration,Angle
This is a dynamics class. Dynamics involves derivatives. How can you be in a dynamics class without knowing calculus and how t...
Velocity,Acceleration,Angle
This is a dynamics class. Dynamics involves derivatives. How can you be in a dynamics class without knowing calculus and how t...
5 years ago | 1
| accepted
Answered
Randi(imax,m,n)
The point is that once the eps of the max value is greater than 1, you cannot represent contiguous sets of integer values in dou...
Randi(imax,m,n)
The point is that once the eps of the max value is greater than 1, you cannot represent contiguous sets of integer values in dou...
5 years ago | 2
Answered
How this code works and why for? What action does this code take?
You could look here: https://en.wikipedia.org/wiki/Bubble_sort
How this code works and why for? What action does this code take?
You could look here: https://en.wikipedia.org/wiki/Bubble_sort
5 years ago | 1
Answered
Creating all possible combination of a letter/string
One way to create a matrix of these character strings: dem_a='ABC'; % assume starting string is all upper n = numel(dem_a); r...
Creating all possible combination of a letter/string
One way to create a matrix of these character strings: dem_a='ABC'; % assume starting string is all upper n = numel(dem_a); r...
5 years ago | 1
| accepted
Answered
Implementation of a matrix
You haven't told us what x and e are, but assuming x is a vector and e is a scalar, simply this: result = cos( (1:n) .* x(:) * ...
Implementation of a matrix
You haven't told us what x and e are, but assuming x is a vector and e is a scalar, simply this: result = cos( (1:n) .* x(:) * ...
5 years ago | 4
| accepted
Answered
Array indices must be positive integers or logical values.
n = 0 and then you use it as an index: n=0; for i=n:1:tam-1 if xi(n)*xi(n+1)<0 You can't have a 0 index. Also, min is t...
Array indices must be positive integers or logical values.
n = 0 and then you use it as an index: n=0; for i=n:1:tam-1 if xi(n)*xi(n+1)<0 You can't have a 0 index. Also, min is t...
6 years ago | 0
Answered
Formatting floating and integer signed numbers
sprintf("%0.2f%+0.2f",a,b) Having the + inside the %format stuff forces the sign to print.
Formatting floating and integer signed numbers
sprintf("%0.2f%+0.2f",a,b) Having the + inside the %format stuff forces the sign to print.
6 years ago | 0
| accepted
Answered
For-loop in MATLAB
You should not modify the index variable i inside the loop: for i = 1:length(Corr_vector) : i=i+44; % this is ba...
For-loop in MATLAB
You should not modify the index variable i inside the loop: for i = 1:length(Corr_vector) : i=i+44; % this is ba...
6 years ago | 0
Answered
Finding All Combinations of Elements in a Vector
N = 6; result = dec2bin((0:(2^N-1))') - '0'; Then the various vectors you want are the rows of result. Or, if you really want...
Finding All Combinations of Elements in a Vector
N = 6; result = dec2bin((0:(2^N-1))') - '0'; Then the various vectors you want are the rows of result. Or, if you really want...
6 years ago | 1
| accepted
Answered
About floating point format
The 64-bit floating point format is IEEE double: https://en.wikipedia.org/wiki/Double-precision_floating-point_format The 32-b...
About floating point format
The 64-bit floating point format is IEEE double: https://en.wikipedia.org/wiki/Double-precision_floating-point_format The 32-b...
6 years ago | 0
Answered
vector multiplied a matrix
Maybe this is what you want if c is 5 x 1 and T is 5 x 101: f = c.' * T;
vector multiplied a matrix
Maybe this is what you want if c is 5 x 1 and T is 5 x 101: f = c.' * T;
6 years ago | 1
| accepted
Answered
why do i receive this error?
You have written a file called input.m that is shadowing the MATLAB function of the same name. You need to rename your input.m ...
why do i receive this error?
You have written a file called input.m that is shadowing the MATLAB function of the same name. You need to rename your input.m ...
6 years ago | 0
Submitted
num2strexact (exact version of num2str)
num2strexact does exact conversion of number to string based on IEEE floating point bit pattern
6 years ago | 1 download |
Answered
Binary to DNA sequence conversion
x = A(i:i+1); But if you are going to process pairs of characters in A, then maybe you need to step by 2 as well, e.g. for i=1...
Binary to DNA sequence conversion
x = A(i:i+1); But if you are going to process pairs of characters in A, then maybe you need to step by 2 as well, e.g. for i=1...
6 years ago | 0
| accepted
Answered
Manipulating dimensions without using loops
It looks like the indexing is consecutive, it is just that you have a mixture of reshaping (which doesn't change memory order of...
Manipulating dimensions without using loops
It looks like the indexing is consecutive, it is just that you have a mixture of reshaping (which doesn't change memory order of...
6 years ago | 0
Answered
How can I rotate a set of points around an axis?
Arrange your points as column vectors and do a matrix multiply. E.g., result = rotmxXYZ * K.'; The result will have your point...
How can I rotate a set of points around an axis?
Arrange your points as column vectors and do a matrix multiply. E.g., result = rotmxXYZ * K.'; The result will have your point...
6 years ago | 0
| accepted
Answered
Solve linear least square problems with non-linear constraints
If you have two sets of corresponding points from two different coordinate systems and you are simply trying to find the "best" ...
Solve linear least square problems with non-linear constraints
If you have two sets of corresponding points from two different coordinate systems and you are simply trying to find the "best" ...
6 years ago | 0
Answered
Error using mex : In function 'void mexFunction(int, mxArray**, int, const mxArray**)'
The error is not with mexFunction. The error is with line in your source code: const int32_t *dims1 = mxGetDimensions(prhs[1])...
Error using mex : In function 'void mexFunction(int, mxArray**, int, const mxArray**)'
The error is not with mexFunction. The error is with line in your source code: const int32_t *dims1 = mxGetDimensions(prhs[1])...
6 years ago | 1
Answered
How to change code from C to matlab script?
This is just straightforward arithmetic, so the conversion is pretty simple. I would forget about using single precision floats...
How to change code from C to matlab script?
This is just straightforward arithmetic, so the conversion is pretty simple. I would forget about using single precision floats...
6 years ago | 1
| accepted
Answered
Relative rotation between two IMU's
Assuming the coordinate frames are as follows: ECI, the world frame BODY1, the IMU1 body frame BODY2, the IMU2 body frame Ex...
Relative rotation between two IMU's
Assuming the coordinate frames are as follows: ECI, the world frame BODY1, the IMU1 body frame BODY2, the IMU2 body frame Ex...
6 years ago | 0
| accepted
Answered
How much money will I accumulate over x amount of years
Those last three lines need to be put into a loop. That is, each month this happens to the balance balance = balance * (1 + r)...
How much money will I accumulate over x amount of years
Those last three lines need to be put into a loop. That is, each month this happens to the balance balance = balance * (1 + r)...
6 years ago | 0
Answered
Fibonacci.m for Fibonacci Series
You function is not vectorized ... that is, it is not written to handle anything other than a scalar input. As written, you wou...
Fibonacci.m for Fibonacci Series
You function is not vectorized ... that is, it is not written to handle anything other than a scalar input. As written, you wou...
6 years ago | 0
| accepted
Answered
slicing matrix in efficient way
Another way: a = 1:120; r = reshape(a,30,[]); x = r( 1:10,:); y = r(11:20,:); z = r(21:30,:);
slicing matrix in efficient way
Another way: a = 1:120; r = reshape(a,30,[]); x = r( 1:10,:); y = r(11:20,:); z = r(21:30,:);
6 years ago | 1
Answered
ode45 and euler not working for random signal
You can't use random inputs with ode45( ). ode45( ) relies on the ability to call the derivative function at arbitrary times to...
ode45 and euler not working for random signal
You can't use random inputs with ode45( ). ode45( ) relies on the ability to call the derivative function at arbitrary times to...
6 years ago | 0
Answered
Fourth Order Runge-Kutta Method for the System of three Differential Equation
I don't really want to sift through all of that code, mostly because you are using different variables for the various states. ...
Fourth Order Runge-Kutta Method for the System of three Differential Equation
I don't really want to sift through all of that code, mostly because you are using different variables for the various states. ...
6 years ago | 1
Answered
calling a c function with calllib doesn't work with pointers
A basic general outline of freeing the memory would be: double *sortie = NULL; // top level variable void free_sortie(void)...
calling a c function with calllib doesn't work with pointers
A basic general outline of freeing the memory would be: double *sortie = NULL; // top level variable void free_sortie(void)...
6 years ago | 0
Answered
Problem using a mex.c file
Looks like you need to compile the mex file. You will need to install a C compiler if you haven't already. If there is a build...
Problem using a mex.c file
Looks like you need to compile the mex file. You will need to install a C compiler if you haven't already. If there is a build...
6 years ago | 0
Answered
View Reshape Function Code
All it basically does is replace the dimensions with the requested dimensions in the internal variable header. There wouldn't b...
View Reshape Function Code
All it basically does is replace the dimensions with the requested dimensions in the internal variable header. There wouldn't b...
6 years ago | 1
| accepted
Answered
arrayfun syntax and use with scalar input
To use a scalar you could use this syntax: a=[1 2;3 4]; b=2; c=arrayfun(@(x)x+b,a); The function handle would pi...
arrayfun syntax and use with scalar input
To use a scalar you could use this syntax: a=[1 2;3 4]; b=2; c=arrayfun(@(x)x+b,a); The function handle would pi...
6 years ago | 0
| accepted
Answered
Access violation detected - MEX
If it worked fine on 32-bit, then of course the most likely problem is you missed something in the integer or pointer size conve...
Access violation detected - MEX
If it worked fine on 32-bit, then of course the most likely problem is you missed something in the integer or pointer size conve...
6 years ago | 0