Answered

Capture I2S data from FPGA board to MATLAB or Simulink

SoC Blockset Support Package for Xilinx Devices has https://www.mathworks.com/help/soc/ref/i2cmaster.html If I read specifica...

Capture I2S data from FPGA board to MATLAB or Simulink

SoC Blockset Support Package for Xilinx Devices has https://www.mathworks.com/help/soc/ref/i2cmaster.html If I read specifica...

ongeveer een uur ago | 0

Answered

How do I derive a parametric slope symbolically?

I wanted to know if Matlab is able to take the argument diff(y,x) given that x and y are functions of t, and derive and then out...

How do I derive a parametric slope symbolically?

I wanted to know if Matlab is able to take the argument diff(y,x) given that x and y are functions of t, and derive and then out...

ongeveer een uur ago | 0

| accepted

Answered

How do I name a structure or matrix with variable names (without using eval)

put everything into one variable. You can use dynamic field names for a struct, new fields added as you go. Or you can hold ever...

How do I name a structure or matrix with variable names (without using eval)

put everything into one variable. You can use dynamic field names for a struct, new fields added as you go. Or you can hold ever...

ongeveer 3 uur ago | 0

Answered

How to solve transcendental equation?

f(x) == c implies that f(x) - c = 0. You can construct the expression f(x)-c and use it with a root-finding function such as fso...

How to solve transcendental equation?

f(x) == c implies that f(x) - c = 0. You can construct the expression f(x)-c and use it with a root-finding function such as fso...

ongeveer 3 uur ago | 0

Answered

Error on uninstalling matlab

You can create that and then proceed so that it will exist to be removed. However, past experience shows that a bunch more such ...

Error on uninstalling matlab

You can create that and then proceed so that it will exist to be removed. However, past experience shows that a bunch more such ...

ongeveer 6 uur ago | 0

Answered

Drawing a line without creating a legend entry

https://www.mathworks.com/matlabcentral/answers/25381-how-to-show-partial-legend-in-figure#answer_33306 You can set the IconDi...

Drawing a line without creating a legend entry

https://www.mathworks.com/matlabcentral/answers/25381-how-to-show-partial-legend-in-figure#answer_33306 You can set the IconDi...

ongeveer 6 uur ago | 1

| accepted

Answered

How to use 'fmincon' in hardware through simulink without any code generation error?

Generally speaking, Simulink Coder does not support matlab functions that you need Coder.extrinsic for. MATLAB Coder does suppo...

How to use 'fmincon' in hardware through simulink without any code generation error?

Generally speaking, Simulink Coder does not support matlab functions that you need Coder.extrinsic for. MATLAB Coder does suppo...

ongeveer 7 uur ago | 0

Answered

Failed to read xml error when using xmlread

filename = 'InputFileName.xml'; S = fileread(filename); SS = regexprep(S, 'encoding="ISO8859-', 'encoding="ISO-8859-', 'once')...

Failed to read xml error when using xmlread

filename = 'InputFileName.xml'; S = fileread(filename); SS = regexprep(S, 'encoding="ISO8859-', 'encoding="ISO-8859-', 'once')...

ongeveer 7 uur ago | 0

Answered

Vectorization of For loop

d = sum(b .* reshape(a, 1, 100, 100), [2 3]);

Vectorization of For loop

d = sum(b .* reshape(a, 1, 100, 100), [2 3]);

ongeveer 7 uur ago | 0

| accepted

Answered

Plotting a set of rings using a single function

r = 50; viscircles([0 0; 0 2*r; 2*r 0; 2*r 2*r], [r;r;r;r], 'color','k', 'linewidth', 1) If you need to be able to plot fewer ...

Plotting a set of rings using a single function

r = 50; viscircles([0 0; 0 2*r; 2*r 0; 2*r 2*r], [r;r;r;r], 'color','k', 'linewidth', 1) If you need to be able to plot fewer ...

ongeveer 7 uur ago | 0

Answered

Help with Summation in Matlab

My guess: x_k = sum(diff(t_j(1:k)) .* V_xj(1:k-1) + x_1); but the x_1 does not make sense to me in that location: why would yo...

Help with Summation in Matlab

My guess: x_k = sum(diff(t_j(1:k)) .* V_xj(1:k-1) + x_1); but the x_1 does not make sense to me in that location: why would yo...

ongeveer 8 uur ago | 1

| accepted

Answered

Simplify Boolean/logical expression

simplify(S, 'steps', 10)

Simplify Boolean/logical expression

simplify(S, 'steps', 10)

ongeveer 9 uur ago | 2

| accepted

Answered

Return a figures from different functions and subplot them

Your function returns the line handes. If you record them, then you can take each handle and set its Parent property to be the a...

Return a figures from different functions and subplot them

Your function returns the line handes. If you record them, then you can take each handle and set its Parent property to be the a...

ongeveer 10 uur ago | 0

Answered

Scattered data 4D interpolation

What interpolation do you need? For example you could do knnsearch() asking for the 2 nearest neighbours of each query point, ...

Scattered data 4D interpolation

What interpolation do you need? For example you could do knnsearch() asking for the 2 nearest neighbours of each query point, ...

ongeveer 10 uur ago | 0

Answered

real clock seconds after 1 second delay in input

If you do not need high precision on it being every 1.0 seconds elapsed, then: max = 15; input = [0 0 0 0 1 1 1 0 0 0 1 1 1 1...

real clock seconds after 1 second delay in input

If you do not need high precision on it being every 1.0 seconds elapsed, then: max = 15; input = [0 0 0 0 1 1 1 0 0 0 1 1 1 1...

ongeveer 10 uur ago | 0

| accepted

Answered

How to extract RGB matrices from stacked TIFF file?

squeeze(mean(YourArray, [1 2])) squeeze(std(YourArray, [], [1 2])) These should give you a 3 x N array of values that are the ...

How to extract RGB matrices from stacked TIFF file?

squeeze(mean(YourArray, [1 2])) squeeze(std(YourArray, [], [1 2])) These should give you a 3 x N array of values that are the ...

ongeveer 10 uur ago | 0

Answered

can calculate mean but not std

You accidentally created a variable named std

can calculate mean but not std

You accidentally created a variable named std

ongeveer 10 uur ago | 1

Answered

I am not able to integrate heaviside(y-f) for x= 0 to pi/2 and y = 0 to pi/2 (only syms integration "int"). After running the code, output is shown in below and i am not able to get the numerical answer. Can you give some ideas on how to proceed?

Reverse the order of integration. >> integ = int( int(heaviside(y-f), y, 0, pi/2),x, 0, pi/2) integ = pi^2/4 - 1

I am not able to integrate heaviside(y-f) for x= 0 to pi/2 and y = 0 to pi/2 (only syms integration "int"). After running the code, output is shown in below and i am not able to get the numerical answer. Can you give some ideas on how to proceed?

Reverse the order of integration. >> integ = int( int(heaviside(y-f), y, 0, pi/2),x, 0, pi/2) integ = pi^2/4 - 1

ongeveer 11 uur ago | 2

| accepted

Answered

index multiple columns together on different critera

B=A(idx, :)

index multiple columns together on different critera

B=A(idx, :)

ongeveer 11 uur ago | 0

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Answered

i need to send a signal from one computer using matlab to another computer also running matlab through usb cable

In the general case, this is going to be a problem. USB is strictly a host / device ("master/slave") system. One of the two sid...

i need to send a signal from one computer using matlab to another computer also running matlab through usb cable

In the general case, this is going to be a problem. USB is strictly a host / device ("master/slave") system. One of the two sid...

ongeveer 12 uur ago | 0

Answered

Running a matlab code through bash script

You need to find your MATLAB command line executable. For Mac it would be /Applications/MATLAB_R2020a.app/bin/matlab . You would...

Running a matlab code through bash script

You need to find your MATLAB command line executable. For Mac it would be /Applications/MATLAB_R2020a.app/bin/matlab . You would...

ongeveer 13 uur ago | 0

| accepted

Answered

Undefined function or variable 'sym' error in MATLAB 2015b (GPTIPS)

The Symbolic Mathematics Toolbox for R2015b was release 6.3. It *did* have a function named sym, and syms was a slightly diff...

Undefined function or variable 'sym' error in MATLAB 2015b (GPTIPS)

The Symbolic Mathematics Toolbox for R2015b was release 6.3. It *did* have a function named sym, and syms was a slightly diff...

ongeveer 16 uur ago | 1

Answered

Logarithmic scale with a different base

log2(x) = log(x) *log(2) log(2) is a uniform scaling and since plots are scaled to fit available space, becomes irrelevant. ...

Logarithmic scale with a different base

log2(x) = log(x) *log(2) log(2) is a uniform scaling and since plots are scaled to fit available space, becomes irrelevant. ...

ongeveer 19 uur ago | 0

Answered

how can one create a new color?

You can create a function that returns the rgb triple. There are also some approaches involving a class with static methods that...

how can one create a new color?

You can create a function that returns the rgb triple. There are also some approaches involving a class with static methods that...

ongeveer 20 uur ago | 0

Answered

How to find overlapping in scatter plot

Within each of the 20 plots, each symbol has a pair of coordinates, one for x value and the other for y value. Now order the 20 ...

How to find overlapping in scatter plot

Within each of the 20 plots, each symbol has a pair of coordinates, one for x value and the other for y value. Now order the 20 ...

ongeveer 20 uur ago | 0

Answered

Code for 'Reverse a Vector'

That approach is wrong. Reverse of A B is reverse of B, followed by reverse of A. When you let either A or B be a scalar then...

Code for 'Reverse a Vector'

That approach is wrong. Reverse of A B is reverse of B, followed by reverse of A. When you let either A or B be a scalar then...

ongeveer 22 uur ago | 0

Answered

Graph is Blank ? why?

"The graph of time vs ich isn't blank" At least one entry in ich is nan or infinite, and that is leading to the fft being all...

Graph is Blank ? why?

"The graph of time vs ich isn't blank" At least one entry in ich is nan or infinite, and that is leading to the fft being all...

1 dag ago | 0

Answered

How can I use Xcode11 to be my compiler?

https://www.mathworks.com/help/coder/ref/codegen.html The problem at the moment is not xcode 11: the problem at the moment is...

How can I use Xcode11 to be my compiler?

https://www.mathworks.com/help/coder/ref/codegen.html The problem at the moment is not xcode 11: the problem at the moment is...

1 dag ago | 0

| accepted

Answered

Locate particular portion in an image

d = size(img,1) - find(any(img, 2),1,'last') in pixels.

Locate particular portion in an image

d = size(img,1) - find(any(img, 2),1,'last') in pixels.

1 dag ago | 0

Answered

Write an url list in one column of a text file

You cannot solve that. Text files do not have hyperlinks, they just have text. If you write the whole thing in HTML standards...

Write an url list in one column of a text file

You cannot solve that. Text files do not have hyperlinks, they just have text. If you write the whole thing in HTML standards...

1 dag ago | 0

| accepted